Curry Coles
03/10/2023 · Elementary School
The three numbers have a sum of 30 and therefore a mean of 10 . Use software to determine the standard deviation. Use the function for sample standard deviation. Give your answer precise to two decimal places. standard deviation = Now suppose a fourth value equal to the mean, 10, were added to the data set. What would happen to the standard deviation? The standard deviation would remain the same because the fourth value is equal to the mean. The standard deviation would increase because the data get more spread out relative to the mean. The statiation would decrease because the data get less spread out relative to the mean.
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The standard deviation would decrease because the data get less spread out relative to the mean.
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