SOLUTION: a company manufactures a television which is found to have a 10% probability of being defective in some way. a sample of 4 televisions is taken.
1) what is the probability that
Algebra ->
Permutations
-> SOLUTION: a company manufactures a television which is found to have a 10% probability of being defective in some way. a sample of 4 televisions is taken.
1) what is the probability that
Log On
Question 416693: a company manufactures a television which is found to have a 10% probability of being defective in some way. a sample of 4 televisions is taken.
1) what is the probability that exactly 1 television will be defective?
2) what is the mean of this distribution?
3) what is the standard deviation of this distribution?
having issues with these three problems, thank you Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a company manufactures a television which is found to have a 10% probability of being defective in some way. a sample of 4 televisions is taken.
---
Binomial Problem with n = 4 and p = 0.1
------
1) what is the probability that exactly 1 television will be defective?
P(x=1) = 4C1(0.1)*(0.9)^3 = 0.2916
-------------------------------
2) what is the mean of this distribution?
u = np = 4*0.1 = 0.4
-------------------------------
3) what is the standard deviation of this distribution?
std = sqrt[npq] = sqrt[0.4*0.9] = 0.6
===========================================
Cheers,
Stan H.
=============
(