The set of values of the statistic so obtained, one for each sample, constitutes what is called:

A. Sampling distribution

B. Systematic sampling

C. Stratified sampling

D. Cluster sampling

Standard error of the sampling distribution of a statistic t is:

A. Square root of standard deviation

B. Square root of median

C. Square root of variance

D. Square root of mean

The median of the data: 19, 25, 59, 48, 35, 31, 30, 32, 51. If 25 is replaced by 52, what will be the new median.

A. 35

B. 53

C. 43

D. 45