Refer to the Following Ages (Rounded to the Nearest Whole

question 87

Multiple Choice

Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits: 20 up to 30
30 up to 40
40 up to 50
50 up to 60
60 up to 70
What is the class interval and the midpoint of the first class?

• A) 20 and 25
• B) 20 and 24.5
• C) 10 and 25
• D) 10 and 24.5

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