Mathematics, 01.05.2021 02:40 bayansayma06
The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10. For a sample of 15-year-old girls, the mean is 165 centimeters with a standard deviation of 8.
If 8 boys and 8 girls were sampled, the standard deviation of the difference is
. (Round your answer to the nearest hundredth.)
Answers: 1
Mathematics, 21.06.2019 12:30
Started: jun 20 at 10: 35pm quiz instructions question 3 y 2x+4 graph the system of linear inequalities 1 by < 2x-2 ty
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Biggest exam of the which of the following are polynomial functions?
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Mathematics, 22.06.2019 00:30
Kevin has a spinner that has 10 equal sections and 2 sections of each colorโred, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.
Answers: 1
The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10....
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