Mathematics, 12.02.2020 00:54 flowerrr55
A bookstore has 15 copies of a particular textbook, of which 6 are first printings and the other 9 are second printings. Suppose that 5 of these copies are randomly selected, and let X be the number of first printings among the selected copies.
a) What kind of a distribution does X have? (name and values of parameters)
b) Computer P(X=2), P( X<=2), P(X>=2)
c) Calculate the mean and standard deviation of X.
Answers: 3
Mathematics, 20.06.2019 18:04, Trucofer2106
The hypotenuse of an isosceles right triangle is $14\sqrt 2$. what is the area of the triangle?
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Mathematics, 21.06.2019 16:30, skye2598
Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation
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Mathematics, 21.06.2019 21:30, Officaljazz18
Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle
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A bookstore has 15 copies of a particular textbook, of which 6 are first printings and the other 9 a...
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