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Lesson 2 Practice Problems
Problem Statement
A teacher asks their students whether they studied for a quiz, then scores the quiz. A relative frequency table displays some of the information they collected.
What does the 86% represent?
Solution
86% of people who passed the quiz studied.
Problem Statement
The accessory choices of 143 people is recorded in the table.
Create a relative frequency table that could be used to show the percentages of belt wearers who wear a watch or not as well as the percentages of beltless people who wear a watch or not.
Solution
Problem Statement
A survey is given to 1,432 people about whether they take daily supplemental vitamins and whether they eat breakfast on a regular basis. The results are shown in the table.
studied
did not study
passed quiz
86%
14%
failed quiz
46%
54%
wearing a watch
no watch
wearing a belt
62
32
no belt
29
20
wearing a watch
no watch
wearing a belt
66%
34%
no belt
59%
41%
Unit 3 Lesson 2 Practice Problems 27
