Data and Statistics Review

Jada asked some students at her school how many hours they spent watching television last week, to the nearest hour. Here is a histogram for the data she collected. About how many students did Jada ask?

• 30

• 40

• 100

• 15

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

What is the median?

Which of the following is the best example of a statistical question?

• How much money does the average architect make in a year?

• Who is the wealthiest person in the world?

• How long did it take to build the largest building in the United States?

• Where is the largest building in the United States?

What are the missing numbers in the data set? Assume the numbers are in order from least to greatest. _____, 20, 23, _____, 27 Mean = 22 Range = 11

• 16, 25

• 5, 35

• 16, 24

• 19, 25

Karly collected data about the number of hours students spend on the internet each week. She determined the five-number summary to be: 0.5 ~ 4 ~ 6 ~ 7.5 ~ 11 Which of the following statements are true? Choose all that apply.

• 50% of the people watched between 4 and 7.5 hours of TV.

• Nobody watched more than 11 hours.

• 75% of the people watched at least 4 hours of TV.

• The range of the data is 3.5 hours.

• Half of the people watched more than 6 hours.

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

Find the mean

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

What is the mode?

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

What is the range?

Theo researched the cost of a well-pet exam from seven different veterinary clinics in his community. They quoted him the following prices: $65, $100, $78, $72, $70, $125, $100 What is the range?

Theo researched the cost of a well-pet exam from seven different veterinary clinics in his community. They quoted him the following prices: $65, $100, $78, $72, $70, $125, $100. What is the IQR?