Why should you generally expect some error when estimating a parameter? (for example, a population? mean) by a statistic? (for example, a sample? mean)? what is this kind of error? called?

This is called as sampling error or sampling variability. Sampling error is the variability that happens because the value of a sample statistic varies from sample to sample. Sampling error is acquired when a population is estimated from a subset, or sample.

answer: f = 32.2m

step-by-step explanation: that is the answer

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.