If the variance of the data values in a sample is 121, what is the standard deviation of the data values? a.15 b.12 c.11 d.13

11

Step-by-step explanation:

We know that the standard deviation of a data is square root of variance of the data or we can say variance of a data is square of standard deviation of the data.

Given: Variance of data values = 121

Then the standard deviation of the data values will be given by :-

Hence, If the variance of the data values in a sample is 121,  then the standard deviation of the data values will be 11.

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.