00:01
For this question, they are given the sample size, which is denoted by n, this is 10, and the probability of success denoted by p, this is given as 0 .4, and the x value given here as 4 here.
00:16
So what we're going to use, so we know the sample size, we know the probability, so we have to use the binomial distribution.
00:23
I can define the random variable x, which is binomially distributed, so the n here, the sample size, and the probability of success, which is 0 .4.
00:31
So we're going to find the probability of x is equal to 4 for this question.
00:36
First of all, let's remember the formula x is equal to lowercase x, this is equal to nx combination for the binomial distribution, p to the power x, and 1 minus p to the power n minus x...