William has equal numbers of jazz songs and pop songs loaded on his personal music player. He has it set to play
songs on a random shuffle. Suppose William is designing
a simulation that could be used to estimate the probability
that the next two songs to play are both pop songs.
Which simulation design could William use to estimate the probability?
A. Random digits
Let 0, 1, 2, 3 = jazz
Let 4, 5, 6, 7, 8, 9 = pop
Select two random digits. Repeat.
B. Number cube
Let 1,2 = jazz
Let 3,4 = hip-hop
Let 5 = pop
Let 6 = country
Roll cube two times. Repeat.
C. Number cube
Let 1 = jazz
Let 2 = pop
Roll cube two times. Repeat.
D. Number cube
Let even number = jazz
Let odd number = pop
Roll cube two times. Repeat.

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.