Mathematics, 03.05.2021 21:20 jessicascott120305
What do the following two equations represent? 4x - 2y = -5 1 1 • Y = -2 2 10 Choose 1
Answers: 1
Mathematics, 21.06.2019 19:00
Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?
Answers: 3
Mathematics, 22.06.2019 04:50
The random variable x has probability density function f (x) = k(−x²+5x−4) 1 ≤ x ≤ 4 or =0 1 show that k = 2/9 find 2 e(x), 3 the mode of x, 4 the cumulative distribution function f(x) for all x. 5 evaluate p(x ≤ 2.5). 6 deduce the value of the median and comment on the shape of the distribution.
Answers: 3
Mathematics, 22.06.2019 06:00
What number should be added by both sides of the equation to complete the the square? x^2-10x=7
Answers: 1
What do the following two equations represent? 4x - 2y = -5 1 1 • Y = -2 2 10 Choose 1 ...
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