Angelica walked in front of a motion detector. These data represent her walk. Based on the pattern in these data, which statements appear to be true about the rate at which Angelica walked? Select all that apply.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.