Pentathlon- Math

What is the mean of a set of numbers?

• The middle number

• The average of the numbers

• The most frequent number

• The difference between the largest and smallest numbers.

The median is the _______ of a set of numbers listed in numerical order.

• average

• middle number

• most frequent number

• range

Frequency diagrams consist of a number line plotting the range of possible values representing a _______.

• mean

• median

• population

• mode

Bar graphs are used to compare groups of data and allow us to quickly generalize information about the data. True or False?

• True

• False

Scatterplots show the relationship between two sets of data as _______ pairs.

• ordered

• unordered

• random

• sequential

Find the mean of the set of data: 19, 5, 9, 12, 10, 5. What is the mean?

• 10

• 9

• 11

• 8

Find the median of the set of data: 4, 8, 17, 16, 20, 7, 16, 7, 19. What is the median?

• 16

• 17

• 8

• 7

Find the mode of the set of data: 38, 47, 56, 38, 56, 44, 48, 55, 42, 38, 36, 38. What is the mode?

• 38

• 47

• 56

• 44

A data set consists of the following scores: 80, 84, 92, 98, 81, 51, 87, 88, 95, 98. What is the outlier?

• 51

• 80

• 98

• 95

Draw a stem-and-leaf plot for the following data set: 56, 34, 54, 48, 42, 31, 55, 48, 45, 38. Identify the mean, median, mode, and range.

• Draw a stem-and-leaf plot

• Identify the mean

• Identify the median

• Identify the mode

• Identify the range