Statistical Questions and Box Plots

A company completed a survey to find the satisfaction level of a new product. The histogram below shows the distribution of the ages of the survey respondents. Based on the information in the histogram, which statement could be true?

• The median of the data distribution is 50 years old.

• There were 25 people surveyed who were 20 years old.

• There were more people in the survey between 40-50 years old than any other age.

• There were more people in the survey between 40-50 years old than 20-40 years old.

What is the MEDIAN of this data

• 95
• 90
• 100
• 40

What is the RANGE of this data

• 40
• 95
• 90
• 100

What is the MODE of this data?

• 100
• 20
• 80, 85, and 90
• none

What is the MEAN for this data?

• 80
• 1040
• 13
• 81

What percent does each of the 4 sections contain on a box and whisker plot?

• 25%
• 50%
• 75%
• 100%

What is the term for the median of the lower half of the data?

• Lower Quartile
• Upper Quartile
• Median
• Maximum

What is the minimum value?

• 64
• 58
• 66
• 60

What is the maximum value?

• 58
• 66
• 64
• 60

Which box and whisker plot has the smallest lower quartile (Q1)?

• Top plot
• Bottom plot