The heights of women aged 20 to 29 follow approximately the n(64, 2.72) distribution. men the same age have heights distributed as n(69.3, 2.84). what percent of young men are shorter than the mean height of young women?

The z-score for men at 64 inches is:

Using a standard normal distribution table, we can see that the cumulative probability for a z-score of -1.866 is 0.031.
The answer is 3.1%.

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.