Answer:
A. The mean is 0.51 and the standard deviation is 0.0142.
Step-by-step explanation:
When we know the mean of the population (0.51), we don't need to estimate the mean of the sampling distribution from the mean of a sample (0.63).
Then, the mean of the sampling distribution is equal to the mean of the population (0.51).
The standard deviation is calculated as:
Number twenty-eight is d. Number 29 is c.
Answer. 332.78
Step-by-step explanation:
I subtracted and as awesome its right trust me.
Sub in what X and y are:

. Solve the exponents (if the exponent is 2 multiply the whole number by itself twice, if it were 3 you would multiply the whole number by itself three times): 3·3=9, 3·3=9: 9(9)= 81. :)