00:01
In this question we're given at certain fast food restaurant.
00:04
64 % of customers order chicken sandwich, 41 % of them order french fries, and 71 % of customers order chicken sandwich or french fries or both.
00:17
I'm going to let event c be your customer orders chicken sandwich and event f be your customer orders french fries.
00:24
I want to find probability of event c.
00:27
There's probability of a customer ordering chicken sandwich, and that will be 64 % or 0 .6 .1 decimal.
00:34
Probability at event f, there is probability a customer order french fries, and that will be 41 % or 0 .41 in decimal.
00:43
Now, we're also given that probability customer order chicken sandwich, that's a customer ordering chicken sandwich, that is event c, or, now, in probability n is times, set notation is intersect, or is plus set notation.
01:00
Union.
01:01
So all over here will be union.
01:05
So all french fries says event f.
01:07
So a given probability c union f is 71 % or 0 .71 in decimal...