When a bus service reduces fares, a particular trip from new york city to albany, new york, is very popular. a small bus can carry four passengers. the time between calls for tickets is exponentially distributed with a mean of 30 minutes. assume that each caller orders one ticket. what is the probability that the bus is filled in less than three hours from the time of the fare reduction?

15 points ! ~ see if you know the answer to both you!

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?