Concept explainers
To calculate : To find the mean score for given quiz.
Answer to Problem 47STP
The required mean score for quiz is 25.
Explanation of Solution
Given information: The scores for a class on 30 point math quiz given.
Formula used:
Reading the stem and leaf plot for identifying the entries,
Calculation :
Consider the given stem and leaf plot given in book as reference, the entries by reading the stem and leaf plot, the entries are 30, 30, 22, 22, 23, 23, 24, 26, 27, 27, 27, 28, 29, 18 and 19.
According to the definition, the mean is defined as the ratio of the sum of the entries to the number of entries. Therefore the mean of the given set of data is,
Chapter 12 Solutions
Geometry, Student Edition
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