Mathematics, 04.02.2020 12:45, sofiakeogh1487
The perimeter of a swimmingpool is 78 feet. the difference between four times the length and the width is 73.5 feet. what are the length and the width of the pool ?
Answers: 2
Mathematics, 21.06.2019 18:20, nehaljay1883
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%
Answers: 1
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