Concept explainers
To find: The mean , variance and standard deviation of the grades she earned.
Answer to Problem 12.4MPS
The mean is
Explanation of Solution
Given information:
The given data is
Calculation:
The set of data is,
Calculate the mean,
Calculate the variance by squaring the difference between each number and add them.
Calculate the standard deviation by finding the square root of the variation.
Therefore, the mean is
Chapter SH Solutions
Algebra 1
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