Title: mean_median_mode
Course: quiz duplicate error

Q: When Charlie ran 6 miles, his mean time per mile was 7.7 minutes. How long did it take Charlie to run 11 miles?
- 63.5 minutes
- 84.7 minutes
A: 84.7 minutes

Q: Find the range of the data set.
27, 28, 34, 34, 40, 43, 47, 50
- 23
- 34
A: 23

Q: Javier’s test scores were 85, 85, 97, 98, and 100. His teacher told the class that they could choose which measures of center they wanted her to use to determine final grades. Which measure do you suggest that Javier choose?
- Range
- Median
A: Median

Q: Find the mean of the set of data: 46, 42, 42, 45, 6, 33, 26, 40
- 30
- 35
A: 35

Q: Find the median of the set of data: 18, 35, 28, 15, 19, 15, 22, 35, 35, 10
- 35
- 20.5
A: 20.5

Q: Find the median of the data set.

3, 35, 23, 37, 45, 5, 49, 27, 48
- 35
- 30.2
A: 35

Q: Find the mode of the data set.

11, 19, 16, 12, 19, 16, 11, 12, 16, 13
- 14
- 16
A: 16

Q: Find the mean of the data set. If necessary, round to the nearest tenth.

18, 14, 8, 22, 25, 8
- 15.8
- 17.3
A: 15.8

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 | 5
Grace | 3
Shawn | 3
Dimitri | 3
Leah | 0
Gregor | 2
Anthony | 2

What is the mean number of days employees were sick? Round to the nearest hundredth, if necessary.
- 2.11 days
- 3 days
A: 2.11 days

Q: Bob’s scores on his first 4 history tests were 55, 85, 58 and 77. To the nearest whole number, what is the mean of these scores?
- 48
- 69
A: 69

Q: The table shows the number of cars at a drive-in movie theater each evening last week. What was the mean number of cars each evening? Round your answer to the nearest tenth, if necessary.

Drive-in Customers
Evening | Number of Students
Monday | 33
Tuesday | 31
Wednesday | 32
Thursday | 41
Friday | 55
Saturday | 58
Sunday | 37
- 40.7 cars per evening
- 43.1 cars per evening
- 37 cars per evening
- 41 cars per evening
A: 41 cars per evening
If right: Find the total number of cars for the week and divide by the number of days. Round to the nearest tenth, if necessary. [Image]
If wrong: Find the total number of cars for the week and divide by the number of days. Round to the nearest tenth, if necessary. [Image]

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

Find the mode of the sizes?
- 46
- 44
A: 44

Q: Find the mean of the data set. If necessary, round to the nearest tenth.

8, 2, 8, 2, 2, 8, 8, 8, 2, 8
- 5.6
- 5.4
A: 5.6

Q: Find the mean of the data set. If necessary, round to the nearest tenth.

18.1, 17.9, 16.8, 18.7, 15.1
- 17.32
- 14.3
A: 17.32

Q: Mike was in charge of collecting contributions for the Food Bank. He received contributions of $13, $34, $26, $31, and $28 from five co-workers. Find the median value of these contributions.
- $26
- $28
A: $28

Q: Find the mode of the set of data: 60, 66, 73, 56, 50, 61, 75, 75, 65, 71, 75
- 75
- 66
A: 75

Q: The distribution of ages of participants at a summer camp is shown in the box-and-whisker plot below.

Age of Participants at a Summer Camp
[Image]

Which of the following statements is NOT correct about the data that this graph represents?
- The lowest age in this group is 2.
- The range of the ages in this group is 17.
- The highest age in this group is 20.
- The median age in this group is 10.
A: The highest age in this group is 20.
If right: The high is actually 19. Therefore, the statement that is NOT correct about the data is “The highest age in this group is 20.”
If wrong: The high is actually 19. Therefore, the statement that is NOT correct about the data is “The highest age in this group is 20.”

Q: The number of runs scored by the All-City Slammers in the first 10 games of their baseball season was as follows: 1, 3, 1, 5, 8, 6, 1, 7, 7, 8. What is the range of this data?
[Image]
- 8
- 5.5
- 7
- 4.7
A: 7
If right: The range of a data set is the difference between the highest and lowest values. Here, the high is 8 and the low is 1. So the range is [Image].
If wrong: The range of a data set is the difference between the highest and lowest values. Here, the high is 8 and the low is 1. So the range is [Image].

Q: Tom and Rachel are running laps on the school track each day. The number of miles run by each of them over a 5-day period is shown in the table below.

Number of Miles Run per
Day by Tom and Rachel
Tom | Rachel
4 | 1
2 | 2
6 | 6
4 | 1
3 | 2

How much greater is Tom’s median number of laps than Rachel’s?
- 0
- 6
- 1.4
- 2
A: 2
If right: When there are 5 numbers in a set of data, the median is the 3rd value when they are placed in numerical order. So the median for Tom is 4 and the median for Rachel is 2. The difference between the two is 2.
If wrong: When there are 5 numbers in a set of data, the median is the 3rd value when they are placed in numerical order. So the median for Tom is 4 and the median for Rachel is 2. The difference between the two is 2.

Q: During the previous two weeks, Briana worked 10 days. The number of hours she worked on those days are show in the list below.
4, 7, 6, 8, 5, 7, 5, 8, 4, 5
What is the mode number of hours she worked during these 10 days?
- 5
- 8
- 7
- 4
A: 5
If right: The mode of a data set is the value that occurs the greatest number of times. Here, that value is 5.
If wrong: The mode of a data set is the value that occurs the greatest number of times. Here, that value is 5.

Q: The stem-and-leaf plot below shows the distribution of the number of minutes that it takes a group of workers at a factory to get to work each day (3 | 2 = 32 minutes) as reported in a survey.

Minutes to Travel to Work
Stem | Leaf
1 | 1, 6
2 | 1, 4, 9
3 | 2, 3, 6, 9
4 | 5, 8
5 | 1, 5
 | 3 | 2 = 32 minutes

Which of the following statements about this data is NOT true?
- There are 12 workers involved in this survey.
- The range of this data is 44.
- The highest number in this data is 55.
- The median number of minutes is 33.
A: There are 12 workers involved in this survey.
If right: There are 13 workers involved in this survey. So the statement that is NOT true is “There are 12 workers involved in this survey.”
If wrong: There are 13 workers involved in this survey. So the statement that is NOT true is “There are 12 workers involved in this survey.”

Q: For two consecutive weeks, Teresa recorded the number of miles she ran each day from Monday through Saturday (she takes Sunday off). The results are in the table below.

Miles Run by Teresa During
Two Consecutive Weeks
Day | Week 1 | Week 2
Mon | 6 | 4
Tue | 2 | 8
Wed | 4 | 4
Thu | 2 | 6
Fri | 3 | 8
Sat | 5 | 8

By how much did her median increase from week 1 to week 2?
- 2.67
- 3.5
- 4
- 0
A: 3.5
If right: The median of week 1 is calculated as [Image]. The median of week 2 is calculated as [Image]. So the amount of increase from week 1 to week 2 is 3.5.
If wrong: The median of week 1 is calculated as [Image]. The median of week 2 is calculated as [Image]. So the amount of increase from week 1 to week 2 is 3.5.

Q: As part of a class experiment, Guillermo has to keep track of the number of hours he sleeps each night for five consecutive nights. The results are 8, 10, 8, 9, 6. For these 5 values, which is higher, the mean or the median?
- It cannot be determined
- they are equal
- the mean
- the median
A: the mean
If right: If the values are arranged in increasing order, the result is 6, 8, 8, 9, 10. It can then be seen that the median is 8. The mean of the data set is found as [Image]. So the mean is greater than the median.
If wrong: If the values are arranged in increasing order, the result is 6, 8, 8, 9, 10. It can then be seen that the median is 8. The mean of the data set is found as [Image]. So the mean is greater than the median.

Q: What is the mode of the temperatures shown in the stem-and-leaf plot?

Temperature (°F)
Stem | Leaves
4 | 3, 5, 8
5 | 0, 0, 3, 6, 6, 6
6 | 4, 5, 7
 | 6 | 5 = 65
- 50°F
- 54.5°F
- 56°F
- 24°F
A: 56°F
If right: The mode of a data set is the number that occurs most often. In this case it is 56°F.
If wrong: The mode of a data set is the number that occurs most often. In this case it is 56°F.

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 40 or more pairs of sandals?

Sandal Sales
Stem | Leaves
1 | 7, 8
2 | 1, 2, 4, 6, 8
3 | 1, 7, 8, 9
4 | 0
 | 3 | 7 = 37
- 1
- 12
- 5
- 2
A: 1
If right: Count the number of leaves for the stem or stems that represent days where 40 or more pairs of sandals were sold. The correct answer is 1.
If wrong: Count the number of leaves for the stem or stems that represent days where 40 or more pairs of sandals were sold. The correct answer is 1.

Q: Two balloon vendors, David and Cheryl, recorded the following numbers of sales during the first 5 hours of a carnival. (Numbers are listed in increasing order for each vendor.)

David: | 7, 8, 8, 8, 10
Cheryl: | 5, 5, 7, 9, 10

Which of the following statements is true?
- Cheryl has a higher mode than David.
- Cheryl has a higher median than David.
- Cheryl has a higher range than David.
- Cheryl has a higher mean than David.
A: Cheryl has a higher range than David.
If right: The range for David is 3 and the range for Cheryl is 5. So it can be correctly stated that Cheryl has a higher range than David.
If wrong: The range for David is 3 and the range for Cheryl is 5. So it can be correctly stated that Cheryl has a higher range than David.

Q: Mr. O'Reilly has prepared several rock samples for an experiment in his third period Physical Science class. The masses of the rocks are 16.6 grams, 15.9 grams, 16.2 grams, 16.4 grams, 15.3 grams, 15.7 grams, 16.2 grams, 15.4 grams, and 16.5 grams. What is the median mass of the rock samples?
- 16.6 grams
- 15.8 grams
- 16 grams
- 16.2 grams
A: 16.2 grams
If right: Write the masses of the rocks in order from least to greatest. The median is the middle value, or 16.2 grams.
If wrong: Write the masses of the rocks in order from least to greatest. The median is the middle value, or 16.2 grams.

Q: What is the mode of the temperatures shown in the stem-and-leaf plot?

Temperature (°F)
Stem | Leaves
4 | 2, 8, 9
5 | 1, 2, 3, 5, 5, 5
6 | 4, 6, 8
 | 6 | 4 = 64
- 55°F
- 54°F
- 53°F
- 26°F
A: 55°F
If right: The mode of a data set is the number that occurs most often. In this case it is 55°F.
If wrong: The mode of a data set is the number that occurs most often. In this case it is 55°F.

Q: The line plot below represents the number of letters written to overseas pen pals by the students at Waverly Middle School. Each “x” represents 10 students. How many students wrote 13 or more letters?
[Image]
- 160
- 170
A: 170

Q: The line plot below represents the number of letters written to overseas pen pals by the students at Waverly Middle School. Each “x” represents 10 students. How many students wrote 15 or more letters?
[Image]
- 140
- 200
A: 140