It is normal based on the Central Limit Theorem. According to the theorem, an appropriately big sample (infinite) size from a population with a limited level of variance, the average of all samples from the same populace will be roughly equivalent to the mean of the population.
Answer:
16
Step-by-step explanation:
Divide 20 by 100 then multiply it by 80, which gives you 16.
Step-by-step explanation:
Total books = 368.
Sociology books = 92.
Psychology books = 3 times sociology books
= 3 x 92 = 276
Total = 276 + 92 = 368
It's an arithmetic progression with first term = 8 and common difference d =2:
so the next term is 14 + 2 = 16
