20
QuizMultiple Choice

Finding the Mean

Question 20 • Concepts in Probability and Statistics A

Maria’s phone bills were $95, $67, $43, and $115. What was the mean, or average, of her phone bills?

Answer
A
$55
B
$72
C
$80
D
$105

Explanation

Add the four bills: $95 + $67 + $43 + $115 = $320. Divide the total by 4 bills: $320 ÷ 4 = $80. The mean is $80, choice C.

AI-written and checked against the verified answer.

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