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Concept explainers
To find: the mean, variance and standard deviation to the nearest tenth for each set of data.
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Answer to Problem 12PT
The mean, variance and standard deviation is
Explanation of Solution
Given information:
The data is :
Calculation: To find the mean add all data and divide it by the number of data,
To find the variance, subtract each data from the mean of data and then square it and add and then divide by the numbers of data,
To find the standard deviation, square root the variance,
Chapter 12 Solutions
Algebra 1
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