Which of the following statements uses the additive identity? O4 + 0 = 4
O3 + 7 = 7+3
O (3 + 7) + 8 = 3 + (7 + 8)

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

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%