Topic 8 Test Review

Which of the following describes the median of a data set?

• The data value that occurs most often

• The middle data value

• The sum of the data values divided by the total number of data values

• The difference of the greatest and least data values

Which of the following describes the range of a data set?

• The data value that occurs most often

• The middle data value

• The sum of the data values divided by the total number of data values

• The difference of the greatest and least data values

Which of the following describes the mean of a data set?

• The data value that occurs most often

• The middle data value

• The sum of the data values divided by the total number of data values

• The difference of the greatest and least data values

Which of the following describes the mode of a data set?

• The data value that occurs most often

• The middle data value

• The sum of the data values divided by the total number of data values

• The difference of the greatest and least data values

How many students ran less than 4 miles?

• 1

• 4

• 10

• 15

Find the mean of the data set:     1, 3, 4, 5, 7

(Hint: add all the numbers then divide by 5 because there are five numbers)

• 4

• 3

• 5

• 20

Find the median of the data set:     5, 8, 3, 5, 1

(Hint: order the numbers from least to greatest and then find the middle number)

• 4.5

• 3

• 5

• 8

Find the mode of the data set:     5, 8, 3, 5, 1

(Hint: the number that occurs the most)

• 1

• 3

• 5

• 8

Find the range of the data set:     5, 8, 3, 5, 1

(Hint: Biggest number minus smallest number)

• 1

• 4

• 5

• 7

The ages of 10 boys are listed below.

7, 6, 8, 6, 8, 7, 8, 7, 8, 6

Which of the following best describes the data? (Hint: there are two answers)

• The range of the data set is 2

• The data are evenly distributed, with a mean of 7.1.

• The data have no mode.

• The median is 8.