Title: Data
Course: quiz duplicate error

Q: [Image]

Mr. Nowak records the average number of chin-ups done by boys and girls in his gym class each year. The following graph shows Mr. Nowak’s data for the past 7 years. How many more chin-ups did the average male do than the average female in 2001?
- 3
- 1
A: 3

Q: Ms. Carter recorded the number of sick days taken last year by each employee, as shown in the table.

Employee | Sick Days
Keisha | 0
Chantal | 1
Sarita | 2
Grace | 5
Shawn | 4
Dimitri | 5
Leah | 5
Gregor | 0
Anthony | 4

What is the mean number of days employees were sick? Round to the nearest hundredth, if necessary.
- 2.89 days
- 5 days
A: 2.89 days

Q: Find the mean, median, and mode of the data.

test scores on a math exam:
95, 91, 91, 98, 81, 71, 76, 68, 74, 85, 74, 84, 74, 90, 96
- mean = 76.3, median = 84, no mode
- mean = 76.3, median = 84, mode = 74
- mean = 83.2, median = 83, mode = 74
- mean = 83.2, median = 84, mode = 74
A: mean = 83.2, median = 84, mode = 74

Q: Mr. Johnson’s class of 20 students collected 180 cans of food for the food drive.
Ms. Smith’s class of 25 students collected 200 cans of food.

Which class’s mean number of cans of food was greater?
- The means are equal.
- Mr. Johnson’s
A: Mr. Johnson’s

Q: Mr. Johnson’s class of 20 students collected 180 cans of food for the food drive.
Ms. Smith’s class of 25 students collected 200 cans of food.

Which class’s median number of cans of food was greater?
- There isn’t enough information to tell.
- Ms. Smith’s
A: There isn’t enough information to tell.

Q: [Image]

In which of the following years was the difference between the male’s and female’s chin-up count the least?
- 1998
- 1999
A: 1998

Q: Find the mean, median, mode, and range of the data set.

daily temperature in degrees Celsius: 24, 24, 27, 32, 37, 38, 41, 49
- mean = 34, median = 34.5, mode = 24, range = 25
- mean = 34, median = 24, mode = 34.5, range = 26
A: mean = 34, median = 34.5, mode = 24, range = 25

Q: The following data shows the high temperatures for a week in May in Michigan. What is the mean temperature for the week?

[Image]
- 65° F
- 62° F
A: 65° F

Q: Ms. Carter recorded the number of sick days taken last year by each employee, as shown in the table.

Employee | Sick Days
Keisha | 1
Chantal | 1
Sarita | 2
Grace | 4
Shawn | 4
Dimitri | 0
Leah | 0
Gregor | 4
Anthony | 5

What is the mean number of days employees were sick? Round to the nearest hundredth, if necessary.
- 2.63 days
- 2.33 days
A: 2.33 days

Q: Ms. Farquand recorded the number of sick days taken last year by each of her employees, as shown in the table.

Employee | Number of Sick Days
Earl | 4
Chantal | 1
Sarita | 2
Ryan | 4
Simone | 9
Davin | 4
Javier | 10
Marty | 4
Martina | 8

Find the mean number of days employees were sick. If necessary, round your answer to the nearest hundredth.
- 5.11
- 4.22
A: 5.11

Q: altitude of lakes in feet: 20, 29, –48, –11, –49, 14, –33, –49
- mean = –15.9, median = –49, mode = –22, range = 79
- mean = –15.9, median = –22, mode = –49, range = 78
A: mean = –15.9, median = –22, mode = –49, range = 78

Q: Bob’s scores on his first 5 history tests were 54, 50, 59, 62 and 78. To the nearest whole number, what is the mean of these scores?
- 61
- 45
A: 61

Q: [Image]

What is the median name length for this class?
- 3
- 12
A: 12

Q: [Image]

How do the name lengths for this class vary?
- 1 to 6
- 9 to 17
- 4 to 1
- none of these
A: 9 to 17

Q: Find the mean, median, and mode of the data.

population of towns in Springfield County:
811, 1323, 887, 1226, 1725, 1213, 2090, 2006, 890, 997
- mean = 1185.1, median = 1219.5, mode = 1450.5
- mean = 1317, median = 1219.5, no mode
- mean = 1185.1, median = 1219.5, mode = 2090
- mean = 1317, median = 1450.5, mode = 2090
A: mean = 1317, median = 1219.5, no mode

Q: The table shows the number of students in each grade who participate in foreign language clubs at Meadowlark High School. Each student participates in only one club.

Foreign Language Clubs
Language | 9th Grade | 10th Grade | 11th Grade | 12th Grade
Spanish | 9 | 12 | 6 | 5
German | 14 | 5 | 15 | 9
French | 5 | 4 | 5 | 6

According to the data above, how many students at Meadowlark High School participate in a foreign language club?
- 20 (Find the sum of the entries in the table. There are 95 students who participate in the foreign language clubs.)
- 95 (Find the sum of the entries in the table. There are 95 students who participate in the foreign language clubs.)
- 87 (Find the sum of the entries in the table. There are 95 students who participate in the foreign language clubs.)
- 75 (Find the sum of the entries in the table. There are 95 students who participate in the foreign language clubs.)
A: 95

Every student in Mr. Smith’s class tossed 3 coins and counted the number of heads. The bar graph below displays their results.

[Image]

a.      How many students are in Mr. Smith’s class?
b.      What is the mean number of heads?
c.      What is the median number of heads?
d.      How many heads did the students toss altogether?
e.      How many tails did the students toss altogether?

Q: Student volunteers have been recording students’ votes for the school counsel during lunch period. According to the bar graph, how many students voted on Monday?

Student Counsel Voting
[Image] [Image]
A: 30

Q: Sally has earned quiz scores of 16, 15, 12, 13, and 16 this semester. What is her mean quiz score?
A: 14.4

Q: Find the median of the data set.

[Image], [Image], [Image], [Image], [Image]
- [Image]
- [Image]
A: [Image]

Q: Use the data in the table. Make a graph that suggests a rapid increase in population from 1994 to 2004.

Year | Population
1994 | 400
1996 | 404
1998 | 410
2000 | 412
2002 | 415
2004 | 420
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

The stem plot below shows test scores for Ms. McIntyre’s class on a state mathematics test. Students can score from 0 to 100 points.
[Image]
a.      What is the range of the data?
b.      What is the median of the data? How many students had a score the same as the median?

Q: Students in grades seven and eight at a local school were asked about the amount of homework they had each night. Their results are summarized in the bar graph below. The blue bars represent seventh grade, and the red bars represent eighth grade.

Amount of Homework Done by
Students in Seventh and Eighth Grades
[Image]
Less than 30 min | 30 min to 1 hr | 1 hr - 2 hr | 2 hr - 3 hr | More than 3 hr

Based on the bar graph above, what is the difference between the number of seventh-grade students and the number of eighth-grade students who had one-half to one hour of homework?
- 15 (Look at the bars for the category “one-half to one hour.” Find the difference between the bars. (Subtract the values of the two bars.))
- 4 (Look at the bars for the category “one-half to one hour.” Find the difference between the bars. (Subtract the values of the two bars.))
- 0 (Look at the bars for the category “one-half to one hour.” Find the difference between the bars. (Subtract the values of the two bars.))
- 12 (Look at the bars for the category “one-half to one hour.” Find the difference between the bars. (Subtract the values of the two bars.))
A: 0

Q: During the previous two weeks, Thomas worked 9 days. The number of hours he worked on those days are show in the list below.
6, 8, 8, 5, 4, 5, 6, 6, 4
What is the mode number of hours he worked during these 9 days?
- 5 (The mode of a data set is the value that occurs the greatest number of times. Here, that value is 6.)
- 8 (The mode of a data set is the value that occurs the greatest number of times. Here, that value is 6.)
- 6 (The mode of a data set is the value that occurs the greatest number of times. Here, that value is 6.)
- 4 (The mode of a data set is the value that occurs the greatest number of times. Here, that value is 6.)
A: 6

Q: A shop owner wants to market a new vest. The vest distributor will charge a reduced price for one size of the owner’s choice. The owner knows that the size selected should be the mode of the sizes the shop sells. In one typical day, the shop owner sold the following sizes of vests:

40, 41, 41, 44, 40, 37, 38, 42, 41, 39, 40, 39, 37, 40, 42

Find the mode of the sizes?
- 42
- 40
A: 40

Q: The stem-and-leaf plot shows how many pairs of sandals were sold at a department store over the past several days. On how many days did the store sell fewer than 30 pairs of sandals?

Sandal Sales
Stem | Leaves
1 | 5, 8
2 | 2, 5, 6, 7, 7
3 | 2, 3, 6, 8
4 | 2
 | 3 | 6 = 36
- 9 (Count the number of leaves for the stem or stems that represent days where fewer than 30 pairs of sandals were sold. The correct answer is 7.)
- 7 (Count the number of leaves for the stem or stems that represent days where fewer than 30 pairs of sandals were sold. The correct answer is 7.)
- 10 (Count the number of leaves for the stem or stems that represent days where fewer than 30 pairs of sandals were sold. The correct answer is 7.)
- 12 (Count the number of leaves for the stem or stems that represent days where fewer than 30 pairs of sandals were sold. The correct answer is 7.)
A: 7

Consider each distribution below. For each distribution, where possible, tell how many people are represented by the data, and identify the mode, median, and range.

      a.
[Image]

            b.
[Image]

Q: Students in drama class are constructing a set for the upcoming play. The following chart shows the number of minutes that the students worked on the set each day this week.

Day | Minutes
Monday | 205
Tuesday | 90
Wednesday | 70
Thursday | 205
Friday | 80

According to the table above, what is the range of minutes that the students worked on the set this week?
- 90 (The range is the difference between the largest and smallest values.)
- 205 (The range is the difference between the largest and smallest values.)
- 135 (The range is the difference between the largest and smallest values.)
- 130 (The range is the difference between the largest and smallest values.)
A: 135

Q: Display the set of data in a frequency table and a line plot.
90  92  93  91  92  92  94  96
- [Image] [Image]
- [Image] [Image]
- [Image] [Image]
- [Image] [Image]
A: [Image] [Image]

A group of 9 students has these numbers of children in their families: 3, 2, 4, 2, 1, 5, 1, 2, and 7 children.
a.      Find the median number of children in the 9 families.
b.      Find the mean number of children in the 9 families.
c.  Explain what happens to the mean number of children when the family with 7 children adopt 5 more children.

Q: The line plot shows on which day of the week you and your classmates were born. Which statement is NOT true?
[Image]
- Two students were born on a Wednesday.
- There are 15 students in your class.
- More students were born on a Tuesday than on a Monday.
- The range of the data is 5.
A: The range of the data is 5.

Q: Which graph suggests that the number of sit-ups Mark did in November was more than double the number of sit-ups he did in September?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Mike was in charge of collecting contributions for the Food Bank. He received contributions of $12, $29, $13, $14, and $19 from five co-workers. Find the median value of these contributions.
- $14
- $16
A: $14

Q: A number cube was rolled 18 times. The results are shown. Display the data in a frequency table.

2 | 6 | 4 | 5 | 6 | 3 | 1 | 4 | 1
4 | 2 | 3 | 5 | 6 | 6 | 2 | 1 | 4
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

For the distribution below, tell how many people are represented and identify the mode, median, and range.

[Image]

The Cycle Shoppe sells 10 brands of bicycles with these prices:
$90, $130, $180, $280, $320, $390, $670, $840, $1050, $1400
a.      What is the mean price?
b.      What is the median price?
c.      Which price seems most typical?  Explain your thinking.

Q: The ages (in years) of the trees in a small park are: 46, 63, 69, 66, 57, 52, 58, 49, 51, 68.
Find the median of the trees’ ages.
A: 57.5

Taryn and Travis work in the student store at their school. They made the coordinate graph below to show the total sales each day for three weeks. There are three points corresponding to each weekday because Taryn and Travis recorded their data for the three weeks on a one-week graph.

[Image]
a.      What were the total sales on Tuesdays for the three weeks Taryn and Travis collected their data?
b.      Which day of the week seems to be the best for sales at the student store? Explain your reasoning.
c.      Which day of the week varies the most for total sales? Explain your reasoning.
d.      How do the sales for the entire three-week period vary? Explain your reasoning.
e.      What is the median of the total sales for Fridays? What is the median of the total sales for the three weeks Taryn and Travis collected data? Explain how you found your answers.
f.      Describe the pattern of sales during a typical week at the student store.

The graph shows the population of four towns.
[Image]

a. | Which town appears to have about twice the population of Town C?
b. | Which town actually has twice the population of Town C?
c. | Explain why the graph is misleading.

Q: Find the mode of the set of data: 21, 25, 39, 24, 27, 29, 16, 17, 18, 16, 41
- 16
- 24
A: 16

Q: Find the range of the data.
Scores: 86, 85, 81, 81, 87, 79, 91, 78, 75, 74
- 20
- 17
- 18
- 12
A: 17

Q: Executives from the Dee-Light music store surveyed 147 8th graders and asked them to identify their favorite music store. The bar graph below shows the number of students who chose Dee-Light and the number of students who chose their competitor, King Music.

Favorite Music Store
[Image] [Image]

Refer to the Favorite Music Store graph above. What invalid conclusion might be drawn from the bar graph as it is drawn?
- More students need to be surveyed. (The way the graph is drawn, the bar for Dee-Light appears to be about twice as big as the bar for King Music. So an invalid conclusion that might be drawn from the graph is that about twice as many students preferred Dee-Light over King Music.)
- About twice as many students preferred Dee-Light to King Music. (The way the graph is drawn, the bar for Dee-Light appears to be about twice as big as the bar for King Music. So an invalid conclusion that might be drawn from the graph is that about twice as many students preferred Dee-Light over King Music.)
- About 19 more students prefer Dee-Light to King Music. (The way the graph is drawn, the bar for Dee-Light appears to be about twice as big as the bar for King Music. So an invalid conclusion that might be drawn from the graph is that about twice as many students preferred Dee-Light over King Music.)
- About 4 times as many students prefer Dee-Light to King Music. (The way the graph is drawn, the bar for Dee-Light appears to be about twice as big as the bar for King Music. So an invalid conclusion that might be drawn from the graph is that about twice as many students preferred Dee-Light over King Music.)
A: About twice as many students preferred Dee-Light to King Music.

Q: [Image]

What is the median foot length for this class?
- 22
- 20
A: 22

Q: A shop owner wants to market a new vest. The vest distributor will charge a reduced price for one size of the owner’s choice. The owner knows that the size selected should be the mode of the sizes the shop sells. In one typical day, the shop owner sold the following sizes of vests:

40, 41, 41, 44, 42, 37, 38, 42, 41, 39, 42, 39, 37, 42, 42

Find the mode of the sizes?
- 44
- 42
A: 42

Mrs. Wilcox asked each of her students to spin a spinner with 50 equal sections labeled with whole numbers between 1 and 50. Below is a stem-and-leaf plot showing the results of the students’ spins.

[Image]

      a.      How many students are in Mrs. Wilcox’s class?
      b.      What is the median number of spins by Mrs. Wilcox’s students?
      c.      What is the mean number of spins by Mrs. Wilcox’s students?
      d.      Which is the better measure of a typical number of spins by a student in Mrs. Wilcox’s class, the median or the mean? Explain your reasoning.

Mr. Watkins arranged the quiz scores of his afternoon math class from least to greatest:
5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 10, 10
a.      How many students are in Mr. Watkins’s afternoon math class? Explain how you found your answer.
b.      How do the range of the quiz scores vary?
c.      What is the mode of the scores?
d.      What is the median of the scores?

Q: Use the frequency table to determine how many students received a score of 60 or better on an English exam.

Score | Frequency
50–59 | 2
60–69 | 4
70–79 | 8
80–89 | 4
90–100 | 2
- 14 students
- 4 students
- 18 students
- 6 students
A: 18 students

Q: Several students were surveyed about their favorite type of movie to watch. Each student is only allowed to give one answer. The results are shown in the bar graph below.

Favorite Type of Movie
[Image] [Image]

According to the graph above, how many students were surveyed?
- 12 (The number of students surveyed corresponds to the sum of all the categories.)
- 21 (The number of students surveyed corresponds to the sum of all the categories.)
- 4 (The number of students surveyed corresponds to the sum of all the categories.)
- 3 (The number of students surveyed corresponds to the sum of all the categories.)
A: 21

Q: The graphs show the number of students receiving A’s in each grade at Glenwood Middle School. Which statement is true?

[Image] | [Image]
- The second graph shows greater changes in the number of A’s than the first graph.
- The second graph exaggerates the differences between the numbers of A’s.
- The two graphs are exactly the same.
- The scale of the first graph exaggerates the number of A’s because it starts at zero.
A: The second graph exaggerates the differences between the numbers of A’s.

Ms. Snow had her students write down a whole number between 1 and 10 on a slip of paper. Then she collected the numbers and displayed the data in a line plot. Use the line plot to answer the following questions.
[Image]
      a.      What is the typical number chosen by students in this class?
      b.      If two students were absent on the day Ms. Snow collected the data, how many students are enrolled in the class? Explain your reasoning.

Q: Find the median of the set of data: 36, 27, 46, 30, 21, 35, 44, 45, 21
- 35
- 33.9
A: 35

Q: The sixth graders have earned a field trip, and they are voting to decide where they want to go. According to the results in the bar graph, how many students voted for a field day?

Field Trip Voting
[Image] [Image]
A: 11

Q: What is wrong with the circle graph shown below?

Favorite Sport
[Image]
- The percents do not add up to 100%. (Each sector of the graph is one-quarter of the circle, but the percents for each sport are not 25%. The sectors are not proportional to the percents.)
- The sample is biased since it doesnt include every sport. (Each sector of the graph is one-quarter of the circle, but the percents for each sport are not 25%. The sectors are not proportional to the percents.)
- The labels of the sectors are not accurate. (Each sector of the graph is one-quarter of the circle, but the percents for each sport are not 25%. The sectors are not proportional to the percents.)
- The sectors for each sport are not proportional to the percents. (Each sector of the graph is one-quarter of the circle, but the percents for each sport are not 25%. The sectors are not proportional to the percents.)
A: The sectors for each sport are not proportional to the percents.

Q: Draw a line plot for the frequency table.

Number | 1 | 2 | 3 | 4 | 5 | 6
Frequency | 4 | 5 | 3 | 2 | 2 | 6
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]