The diameter of a brand of tennis balls is approximately normally distributed with a mean of 2.86 and a standard deviation of 0.08. if you select a random of 64 balls, what is the mean and the standard deviation of the sampling distribution of the mean?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent