Find the sample standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations. 2, 6, 15, 9, 11, 22, 1, 4, 8,19

A. 6.3
B. 7.1
C. 6.8
D. 2.1

So, the sample standard deviation is 7.1.

Step-by-step explanation:

From Exercise we have the next numbers:  2, 6, 15, 9, 11, 22, 1, 4, 8,19.

So, N=10, because we have 10 numbers.

We use the formula for standard deviation:

So,  μ  is the mean of all our values.

We get:

Now, we calculate the sum

Therefore, we get

So, the sample standard deviation is 7.1.

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step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.