Mathematics, 10.10.2019 05:30 nathanphelps2468
Acollege bookseller makes calls at the offices of professors and forms the impression that professors are more likely to be away from their offices on friday than any other working day. a review of the records of calls, 20% of which are on fridays, indicates that for 18% of friday calls, the professor is away from the office, while this occurs for only 11% of calls on every other working day. define the random variables as follows: x = 1if call is made on fridayx = 0, otherwisey = 1if professor is away from officey = 0, otherwise(a)find the joint probability distribution of x and y. (b)find the conditional probability distribution of y, given x = 0. (c)find the marginal probability distributions of x and y. (d)find and interpret the covariance between x and y.
Answers: 3
Mathematics, 21.06.2019 18:00
Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.
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Mathematics, 21.06.2019 23:30
Acar loses a quarter of its value every year. it is originally worth $35,000. to the nearest dollar,how much will the car be worth in 8 years?
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Mathematics, 22.06.2019 00:30
If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height
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Mathematics, 22.06.2019 02:30
Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?
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Acollege bookseller makes calls at the offices of professors and forms the impression that professor...
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