Mean Median Mode Range Look at Graphs

What is the mean wait time? (Hint: Each dot represents a number. Make a list and follow your steps to find the mean.)

• 50

• 54

• 46

• 324

What is the mode wait time?

• 50

• 53

• 50 and 53 because they both appear in the data twice.

What is the mode amount of money fundraised per month by the seventh grade?

• $0

• $10

• $40

• $80

$80 is the range of money fundraised per month for the

• 7th Grade

• 8th Grade

• 7th and 8th Grade

What was the range in life expectancy over the three eras studied?

• 30

• 40

• 50

• 60

In April, the eighth grade fundraised ________ dollars than the 7th grade.

• $10 more

• $10 less

• $80 more

• $80 less

True or False: All measures of center will always be the exact same number.

• True

• False

An amusement park debuted a new roller coaster this season, and Peter, the park manager, is interested in the number of people who are riding it. The two data sets below represent the number of riders during the first two weeks of June. Rather than look at all those numbers, Peter wants to select a measure of central tendency that he can use to compare the attendance from week to week. Peter understands that many visitors want to ride the most popular attractions; therefore, he does not want outlier data to have too great an impact. Given that consideration, which measure of central tendency should Peter use to compare the attendance of week 1 to the attendance of week 2?

• Peter should compare the median attendance of week 1 to the median attendance of week 2.

• Peter should compare the median attendance of week 1 to the mean attendance of week 2.

• Peter should compare the mean attendance of week 1 to the median attendance of week 2.

• Peter should compare the mean attendance of week 1 to the mean attendance of week 2.

Which of the following is an inference that could be made from this data?

• 25% of team 1 is shorter than team 2

• 75% of team 2 is taller than team 1

• 50% of the teams are the exact same height

• 25% of team 1 is the same height as 50% of team 2

The number of bikes sold by a store over a period of two weeks is shown. Which statement CORRECTLY compares the two data sets?

• The range of Week 1 is equal to the range of Week 2.

• The range of Week 2 is less than the range of Week 1.

• The range of Week 1 is less than the range of Week 2.

• There isn't enough information to calculate the range.