Question

Difference between formula of sample and population standard deviation

Answer 1

Answer:

In the formula for a population standard deviation, you divide by the population size N , whereas in the formula for the sample standard deviation, you divide by n−1.

plz mark as brainliest if it helps you☺

Answer 2

X = Zα/22 *p*(1-p) / MOE2, and Zα/2

the critical value of the Normal distribution at α/2 (e.g. for a confidence level of 95%, α is 0.05 and the critical value is 1.96), MOE is the margin of error, p is the sample proportion, and N is the population size.