The standard deviation of the sampling distribution of the mean is called the:

a. standard error of the mean
b. standard error of variability
c. standard error of the estimate
d. standard error of the sample

a. Standard error of mean

Step-by-step explanation:

The standard error of mean is computed by dividing the standard deviation to the square root of sample size. It can be represented as

The standard deviation of the sampling distribution is known as the standard error of mean because it measures the accuracy of sample mean as compared to population mean

The answer is 16 cm it think because from my method the answer 16 is coming

Step-by-step explanation:

i don't able to give explanation because i do it on book