![Mathematics](/tpl/images/cats/mat.png)
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.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:00, lamashermosa23
What are the domain and range of the function? f(x) = -4 (sqrt)x
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:40, jonmorton159
Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:10, jonathan3191
Empty box + box + empty box fill in the box is equal to 30 how
Answers: 2
Do you know the correct answer?
A bookstore has 15 copies of a particular textbook, of which 6 are first printings and the other 9 a...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 18.05.2021 07:40
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/en.png)
English, 18.05.2021 07:40
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 18.05.2021 07:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 07:40
![Konu](/tpl/images/cats/ekonomika.png)
Business, 18.05.2021 07:40
![Konu](/tpl/images/cats/istoriya.png)
History, 18.05.2021 07:40