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Mathematics, 21.02.2021 16:00 maddie3354
35 - 8 - {2x((-11) × 1) - (VV64 + 7") -(5 - 2294}x (4 - 18 + 9)
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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%
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35 - 8 - {2x((-11) × 1) - (VV64 + 7") -(5 - 2294}x (4 - 18 + 9)...
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