statistics
posted by kinshassa on .
The height of 18yearold men are approximately normally distributed, with mean of 68 inches and a standard deviation of 3 inches. What is the probability that an 18yearold man selected at random is between 67 and 69 inches tall? Round your answer to the nearest thousandths place (3 places).

Use zscores and a ztable to find your probability.
Formula:
z = (x  mean)/sd
mean = 68
sd = 3
Find two zvalues, using 67 and 69 for x.
Next, check a ztable for the probability between the two zscores.
I hope this will help get you started.