Question 2 • Concepts in Probability and Statistics A
Mikayla asked 10 of her friends how many hours of TV they watch in a week. Three of her friends said 8 hours, two of her friends said 9 hours, two of her friends said 11 hours, one of her friends said 12 hours, and two of her friends said 14 hours. Mikayla wanted to make a dot plot of the data she gathered. In what order would she create the dot plot?
Answer
A
Draw a number line from 8 to 14. Show the frequency of each number. Title the dot plot.
B
Show the frequency of each number. Title the dot plot. Draw a number line from 8 to 14.
C
Title the dot plot. Show the frequency of each number. Draw a number line from 8 to 14.
D
Show the frequency of each number. Draw a number line from 8 to 14. Title the dot plot.
Explanation
First, draw a number line that includes all the values in the data, from 8 to 14. Then place dots above each number to show its frequency: 3 above 8, 2 above 9, 2 above 11, 1 above 12, and 2 above 14. Finally, title the dot plot. This is choice A.
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