A social scientist gathers a carefully chosen group of 20 people whom she has selected to represent a broad cross section of the population in New York City. She interviews them in depth for a study she is doing on race relations in the city. Is this a probability sample?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

Math each whole number with a rational, exponential expression