Concept explainers
To calculate: The mean

Answer to Problem 30E
For the data set,
Explanation of Solution
Given information:
The data set,
Formula used:
For the data set
For the data set
For the data set
Calculation:
Consider the data set,
Recall that for the data set
For the provided data set, mean is evaluated as,
Therefore, mean of the data is
Next, recall that for the data set
For the provided data set, variance is evaluated as,
For the data set
For the provided data set, standard deviation is evaluated as,
Thus, for the data set,
Chapter 13 Solutions
EBK PRECALCULUS W/LIMITS
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