11. calculate the sample standard deviation of the number of letters for the ten words in your sample. round your answer to three decimal places.

sample standard deviation of 10 letter counts (9,6,8,9,6,7,5,5,6,7) is 1.476

Step-by-step explanation:

Sample standard deviation is the square root of the equation (sample varaince)

That is, sum of the square differences from the mean divided by (sample size -1) : Σ (  where

Lets create 10 word and their letter counts sample using some of the words of the question:

{Calculate : 9,  sample: 6, standard: 8, deviation: 9, number: 6, letters: 7, words: 5, Round: 5, 6, decimal: 7}

The elements of the sample are:

9,6,8,9,6,7,5,5,6,7

Mean of the sample is: ()

Sample variance is:

≈2.178

And finally sample standard deviation is : ≈1.476

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

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step-by-step explanation: