Letxequal the iqof arandomly selected american and assume it follows a normal distribution with the followingparametersx~n (112.8,13.72). what is the probability that a randomly selected american has aniqhigher thanjohn f. kennedy

If y varies directly as x, find the constant of variation if y = 12 when x = 1/3

What is the average of 68 72 and 82

A courier earns a fixed amount for each package she delivers and yesterday her average hourly wage was $12.50 an hour if she worked 8 hours yesterday and delivered 25 packages how much does she earn for each package delivered?

What are the values of the median and the mean of this distribution?{1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 7}

Solve for y. 6y-1.5x=8

How many people were included in the sample shown below? A dot plot going from 0 to 6. There are 3 dots above 0, 5 dots above 1, 4 dots above 2, 3 dots above 3, 2 dots above 4, 0 dots above 5, and 1 dot above 6.

The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches.

For a hypothesis test of H0: p = 0.40 against the alternative Ha: p > 0.40, the z test statistic is found to be 2.25. What can be said about this find

James can jog twice as fast as he can walk. He was able to jog the first 9 miles to his grandmother's house, but then he tired and walked the remaining 1.5 miles. If the total trip took 2 hours, then what was his average jogging speed?

One 8hr day, 5 barbers gave 120 haircuts. The barbers gave the same number of haircuts how many haircuts did they give per hr