Interpreting Data Warmup

How many people chose pizza as their favorite food?

• 11

• 9

• 10

• 5

Answer explanation

A total of 11 people chose pizza as their favorite food, making it the most popular option among the choices provided.

Look at the bar graph. Which tally chart matches the data on the bar graph?

• A

• B

• C

• D

Answer explanation

The bar graph data corresponds to the tallies represented in choice D. Each category's tally in D matches the heights of the bars in the graph, confirming it as the correct tally chart.

As the day continues, what will happen to the length of the shadow?

• will decrease

• will continue to increase

• will remain the same

• will decrease then increase

Answer explanation

As the day progresses, the sun moves higher in the sky, causing shadows to lengthen. Therefore, the length of the shadow will continue to increase throughout the day.

If you were the owner of Shop A, what flavors of ice cream do you want to make sure that you have on hand?

• chocolate

• mango

• coconut

• chocolate and mango

Answer explanation

As the owner of Shop A, having chocolate and mango flavors is essential. Chocolate is a classic favorite, while mango offers a refreshing tropical option, appealing to a wide range of customers.

Find the range of the data.

63, 71, 65, 66, 87, 53

• 32

• 33

• 34

• 35

Answer explanation

To find the range, subtract the smallest value (53) from the largest value (87). So, 87 - 53 = 34. Therefore, the range of the data is 34.

Find the median, first quartile, third quartile, and interquartile range of the data.

32, 53, 72, 66, 47, 54, 49, 67, 71

• Median: 54

  First Quartile: 49

  Third Quartile: 67

  IQR: 18

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 21

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 22

• Median: 54

  First Quartile: 49

  Third Quartile: 69

  IQR: 20

Answer explanation

To find the median, first sort the data: 32, 47, 49, 53, 54, 66, 67, 71, 72. The median is 54. First quartile (Q1) is 48, third quartile (Q3) is 69, and IQR is Q3 - Q1 = 21. Thus, the correct choice is the second one.