00:01
So for this question, the first part, whether it is actually a binomial experiment.
00:07
So to consider this question, we need to consider what kind of experiment is binomial.
00:15
So we should have a series of independent trials.
00:19
And for each trial, we have just one possible outcome.
00:25
So we may have two possible outcomes in total.
00:31
But in each trial, we can just have one outcome.
00:36
So let's say yes or no.
00:38
And then we have a fixed number of trials.
00:42
And here, the number is 10 here.
00:46
And then we can see that for each adult, the probability of not using internet is the same.
00:55
So the probability of using the internet is also the same for a randomly selected adult in the population.
01:02
So it is reasonable to assume that these addouts are independent from each other.
01:09
So this is actually a binomial experiment...