7.1-7.3 Review

The box plot shows the ages of a group of people. What is the median age?

The box plot shows the ages of a group of people. What is the Interquartile Range? (IQR)

The box plot shows the ages of a group of people. What percentage of the people are between the ages of 18 and 28?

• 25%

• 50%

• 75%

• none of these

Which is the modal range?

• 50 < m < 60

• 60 < m < 70

• 70 < m < 80

• 90 < m < 100

The following data represents the height of 6 people in cm: 120, 168, 142, 140, 150, 156.

Calculate the mean.

The following data is the same as the previous question about heights: 120, 168, 142, 140, 150, 156.

Calculate the standard deviation. Round 2 decimal places.

A Lebron James scored 26, 20, 18, 22, 25, and 17 points for 6 basketball games. After the next 4 games, his overall average increased to 23 points per game. How many points did Lebron score over those 4 games?

The following is known about a data set:

Q1 = 12

Med = 18

Q3 = 27

Which value(s) would be considered an outlier(s) in the data set?

• -5

• 40

• 50

• 0

• 49