Consider the following dataset: 9, 12, 15, 18, 21. What is the standard deviation of this dataset?a.3.6b.4c.4.24d.5.5

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Solution 1

To calculate the standard deviation of a dataset, you need to follow these steps:

Find the mean (average) of the dataset. In this case, the mean is (9 + 12 + 15 + 18 + 21) / 5 = 15.
Subtract the mean from each data point and square the result. For example, (9 - 15)^2 = 36, (12 - 15)^2 = 9, ( Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.

Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
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