The magazine sports illustrated asked a random sample of 750 division i college athletes, "do you believe performance-enhancing drugs are a problem in college sports? " suppose that 30% of all division i athletes think that these drugs are a problem. let p^ be the sample proportion who say that these drugs are a problem.
which of the following are the mean and standard deviation of the sampling distribution of the sample proportion p^?

a) mean = 0.30, sd = 0.017
b) mean = 0.30, sd = 0.55
c) mean = 0.30, sd = 0.0003
d) mean = 225, sd = 12.5
e) mean = 225, sd = 157.5

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

What is the point-slope form of theequation for the line with a slope of-2 that passes through (1, 4)? a y + 1 = -2(x + 4)b y-1=-2(x-4)c y + 4 = -2(x + 1)d y - 4 = -2(x - 1)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.