![subject](/tpl/images/cats/mat.png)
Mathematics, 17.03.2022 07:00 lea5261
1. 4 A box contains 300 discs of different colours. There are 100 pink discs, 100 blue discs and 100 orange discs. The discs of each colour are numbered from 0 to 99. Five discs are selected at random, one at a time, with replacement. Find
(i) the probability that no orange discs are selected. [3]
(ii) the probability that exactly 2 discs with numbers ending in a 6 are selected. [4]
(iii) the probability that exactly 2 orange discs with numbers ending in a 6 are selected. [4]
(iv) the mean and variance of the number of pink discs selected. [8]
1. 5 The mean number of defective batteries in packs of 20 is 1. 6. Use a binomial distribution to calculate the probability that a randomly chosen pack of 20 will have more than 2 defective batteries
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00, ashley1460
Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:30, danielzgame
Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:00, amahar4000
Which is the factored form of the polynomial p(x) shown here?
Answers: 1
![image](/tpl/images/cats/mat.png)
You know the right answer?
1. 4 A box contains 300 discs of different colours. There are 100 pink discs, 100 blue discs and 100...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2021 14:00
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
English, 25.08.2021 14:00
![Konu](/tpl/images/cats/mir.png)
World Languages, 25.08.2021 14:00
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2021 14:00
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 25.08.2021 14:00
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 25.08.2021 14:00
![Konu](/tpl/images/cats/fizika.png)
Physics, 25.08.2021 14:00
![Konu](/tpl/images/cats/en.png)
English, 25.08.2021 14:00