For the data set 6, 5, 10, 11, 13, the mean, 7, is 9. What is the standard
deviation?

3.39

Step-by-step explanation:

We will use SD formula to find our answer.

= Standard deviation.

= Mean.

N= Numbers of data-points.

We have been given that mean of our data set is 9. So we will find the square of each data point's distance to the mean.

Now let us substitute our given values in above formula.

Upon adding the square of distances we will get,  

Upon dividing 46 by 4 we will get,

Upon taking square root of 11.5 we will get,

Therefore, the standard deviation for our given data set will be 3.39.

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x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

14

step-by-step explanation: