Mathematics, 01.12.2021 01:00 lilsnsbsbs
The sample mean and sample variance of five data values are, respectively 13. 6 and 25. 8. If three of the data values are 7, 13 and 20, what are the other two data values? , .
Answers: 3
Mathematics, 21.06.2019 17:30
If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
Answers: 1
Mathematics, 21.06.2019 18:20
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
The sample mean and sample variance of five data values are, respectively 13. 6 and 25. 8. If three...
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