00:01
Hi, i'm david and i'm here to help me answer your question.
00:04
Now let me bring up your question here.
00:07
In this question here, we're given the people visiting video rental stores often rent more than one dvd at the time.
00:17
The probability the distribution for the dvd rental per customer and video to go is given in the table below.
00:25
So, sorry, here we're given that the probability distribution for the dvd rental per customer.
00:33
It will be x here stand for the number of the dvd rental for each customer.
00:50
And therefore in the question i want to describe the random variable x in words.
00:56
X will be the number under dvd a customer rent.
01:01
And then that will be the right one.
01:05
And therefore the answer will be the first option here.
01:09
Now for the b, want to find the probability that the customer rent 3 dvd.
01:15
So once you find the missing one here, we know that you're inner to be a valid probability density function, the total probability must equal to 1.
01:24
Therefore the answer for the part b, which needs to turn the 1 with minus own the orders...