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2 years ago

20+20+20+20+20+20+20+20+20+/245+85678345+8657

Mathematics

2 answers:

svp [43]2 years ago

6 0

Answer:

the answer is 85687162.0816..

Step-by-step explanation:

melomori [17]2 years ago

3 0

Answer:

85687162.0816

Step-by-step explanation:

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$\bar x = 82$

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Step-by-step explanation:

Given

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Solving (b); Point estimate of standard deviation

To do this, we simply calculate the sample standard deviation

$\sigma = \sqrt{\frac{\sum(x-\bar x)^2}{n - 1}$

$\sigma = \sqrt\frac{(87-82)^2+ (91-82)^2+ ....+ (79-82)^2+ (83-82)^2+ (96-82)^2}{12-1}$

$\sigma = \sqrt\frac{1022}{11}$

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Note that: The sample mean and the sample standard deviation are the best point estimators for the mean and the standard deviation, respectively.

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Answer:

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Step-by-step explanation:

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