00:01
Hey there, welcome to numerade.
00:03
So each month here we have a couple going to one of the two italian restaurants on high street.
00:10
So therefore they visit a pizzeria one month and the next month probability is 0 .6.
00:19
We're asked to find the probability that the couple goes to the pizzeria in february, given that they go to the pizzeria in april.
00:28
So, knowing this here, we are going to be setting it up as the probability of going to the pizzeria in february and in april.
00:42
For the reason that our setup here, in order to find the answer, is going to be the probability of going to the pizzeria in february, given going to the pizzeria in april, which is equivalent linear to the probability of pizzeria in february and april and then divided by the probability of going to the pizzeria in just april.
01:09
So that's why we have to find these two components first.
01:16
So therefore, let's resume here.
01:19
So we have f and b, february and sorry, this should be april.
01:28
So what we have here is going to be the complement 1 minus 0 .5 multiplied by, so this is going to be doing the condition of probability 0 .6, 0 .36 plus 0 .5 times 0 .4.
02:01
Alright, so this will give us a probability that equals around, so we are going to be actually computing this, 0 .28...