Mathematics, 15.04.2020 00:44 xxkeyxx51
"A manufacturer of automobile batteries claims that the average length of life for its grade A battery is 55 months. Suppose the standard deviation of the life length is known to be 3 months, and the frequency distribution of the life length data is known to be mound shaped. Approximately, what percentage of the manufacturer`s grade A batteries will last more than 49 months?"
Answers: 3
Mathematics, 21.06.2019 16:30
Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?
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Mathematics, 21.06.2019 18:50
The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x
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Mathematics, 21.06.2019 23:00
Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone
Answers: 1
Mathematics, 21.06.2019 23:30
How do you find the distance of each number from the mean
Answers: 1
"A manufacturer of automobile batteries claims that the average length of life for its grade A batte...
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