00:01
So, here the question is that a factory finds that 2 % of their products are defective.
00:05
Now they take a random sample of 50 products.
00:08
So first part is that what is the expected number of defective products in the sample, right.
00:13
So, here the expected number of the defective products will be n into the probability of getting a defective product.
00:20
So, this is 50 into 0 .02 that is equal to 1, right.
00:26
Now the next part of our question here it says that what is the probability that exactly one product in a sample is defective, right.
00:33
So, here this is a binomial distribution.
00:37
So, the formula to compute a probability is ncx into p to the power x into 1 minus p to the power n minus x, right.
00:46
So, here we have to compute the probability of x is equal to 1...