WEBVTT
1
00:00:01.439 --> 00:00:13.570 A:middle L:90%
all right. 72. We have you come and
2
00:00:13.580 --> 00:00:23.679 A:middle L:90%
were given under 25 25 to 49. 50 to
3
00:00:23.690 --> 00:00:39.289 A:middle L:90%
99 100 for 99 and greater than or equal to
4
00:00:39.299 --> 00:00:49.009 A:middle L:90%
500. And our probabilities, our 0.431 for under
5
00:00:49.020 --> 00:01:00.979 A:middle L:90%
25 0.248 for 25 to 49. Wait to 15
6
00:01:00.990 --> 00:01:10.280 A:middle L:90%
or 50 to 99 0.1 for 104. 99.0 06
7
00:01:19.840 --> 00:01:23.510 A:middle L:90%
So, in part A, we're going to look
8
00:01:23.519 --> 00:01:30.769 A:middle L:90%
at, um we're randomly selecting someone. No,
9
00:01:30.769 --> 00:01:33.000 A:middle L:90%
we don't want to know the probability that they're making
10
00:01:33.010 --> 00:01:37.000 A:middle L:90%
50,000 or more. So I'm gonna add up my
11
00:01:37.000 --> 00:01:53.349 A:middle L:90%
0.215 plus 0.1 plus 0.6 in that equals 0.3 21
12
00:01:55.540 --> 00:02:02.299 A:middle L:90%
part B. Um, given they make over,
13
00:02:02.530 --> 00:02:09.750 A:middle L:90%
find the probability given they make over 50,000 at based
14
00:02:15.840 --> 00:02:25.469 A:middle L:90%
. What's that probability? They make at least 100,000
15
00:02:28.740 --> 00:02:32.819 A:middle L:90%
. So my formula is at least 100,000 and at
16
00:02:32.819 --> 00:02:36.349 A:middle L:90%
least 50,000. Well, that's just gonna be at
17
00:02:36.349 --> 00:02:40.580 A:middle L:90%
least the hunt. Good 1000 which is gonna be
18
00:02:40.830 --> 00:02:50.020 A:middle L:90%
0.106 over the probability of at least 50,000 which is
19
00:02:50.030 --> 00:02:55.930 A:middle L:90%
0.3 21 No, when I divide that I get
20
00:02:55.930 --> A:middle L:90%
0.3302