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 13:30, Tcrismon1000
Which best describes the transformation that occurs in the graph? a) dilation b) reflection c) rotation d) translation
Answers: 2
Mathematics, 21.06.2019 20:30, AdanNava699
If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.
Answers: 1
Acollege bookseller makes calls at the offices of professors and forms the impression that professor...
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