00:01
Okay, so we have a study where, you know, some professors dropped some envelopes with money on them.
00:07
42 % of them were returned.
00:11
From the economics classes, 54 % were returned.
00:18
From business psychology and history classes, 35 % were returned.
00:24
So we're supposed to write some probability statements for this.
00:27
So, a, remember, it said the r is the event that the money was returned.
00:35
E is the is economics classes and o is other classes.
00:41
So for a, the probability statement for the overall percent of money returned, that's just going to be that the probability of being returned is 42%.
00:54
That's the probability, or if we want to write it in a decimal, we could write it.
00:59
The probability of r is 0 .42, right? the probability of being returned overall...