It is not always possible to measure every individual in a population; what is the name of the representative group

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

Which table represents points on the graph of h(x) = 3√-x+2?