Mathematics, 29.10.2019 22:31 fredo99
The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. the distribution of the number of daily requests is bell-shaped and has a mean of 41 and a standard deviation of 9. using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 41 and 59? (round your answer to the nearest tenth of a percent)
Answers: 3
Mathematics, 20.06.2019 18:04
For a read-a-thon, jay and odhrà n each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhrà n's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?
Answers: 2
Mathematics, 21.06.2019 17:30
Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 17:30
Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]
Answers: 3
The physical plant at the main campus of a large state university recieves daily requests to replace...
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