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Lynna [10]
3 years ago
9

Fiad the sample variance and standard deviation. 21, 10, 3, 7, 11

Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

SD = 5.987, Var(X) = 35.85

Step-by-step explanation:

Apply the standard deviation formula, remembering that n represents the sample size. Then, just take the square of the standard deviation to obtain the variance.

Hope this helps!

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This is a proportion question. We can express this as an equation where the answer is x:

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From there, you can just cross-multiply and divide to get:

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Answer:

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