Mathematics, 26.10.2021 23:00 ehsaangaminglegend
An organization tracking college expenses reported that the average cost of textbooks and supplies for students attending four-year public colleges and universities in the 2015-16 academic year is . Suppose a sample of 15 students was selected and the accompanying data reflect the amount they paid for textbooks and supplies during that year.
$1,358 $1,204 $1,207 $1,062
$1,316 $1,38 $1,554 $1,501 $1,421
$1,398 $1,223 $1,382 $1,542 $1,176
Required:
a. Calculate the mean and standard deviation.
b. Determine the number of standard deviations the most extreme cost is away from the mean. If someone were to advise a prospective student concerning the money the student should save to afford the cost of books and supplies for one year for at least 90% of the colleges, determine the amount they would suggest.
Answers: 3
Mathematics, 21.06.2019 15:00
With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17
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Mathematics, 21.06.2019 17:00
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
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An organization tracking college expenses reported that the average cost of textbooks and supplies f...
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