A poll of 200 students were surveyed about their major what...

Name: a poll of 200 students were surveyed about their major what is the probability of selecting an individual who is a management major gender management marketing others total male 40 10 30 80 56202
Uploaded: 2022-07-20T14:04:33-08:00
Duration: 2 min 58 s
Channel: Benjamin Densmore
Description: a poll of 200 students were surveyed about their major what is the probability of selecting an individual who is a management major gender management marketing others total male 40 10 30 80 56202

A poll of 200 students were surveyed about their major. What is the probability of selecting an individual who is a management major Gender Management Marketing Others Total male 40 10 30 80 female 30 20 70 120 Total 70 30 100 200

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Transcript

00:02 So the easiest way for me to interpret this problem is by creating a table like you can see here.

00:09 So when we're finding these probabilities, the probability of selecting the individual who is majored in marketing, this table makes it incredibly easy.

00:20 So we have that there's 300 total people.

00:23 And then we have that there are 80 total in management.

00:27 There are 90 total in marketing.

00:28 And then there are 130 total in these other majors.

00:33 So the probability of selecting an individual who's majoring in marketing is going to be 90 out of 300.

00:41 90 out of 300.

00:42 So the answer to a is going to be 90 out of 300.

00:48 90 out of 300.

00:51 Now, i'm not sure does it want it as we can leave it as a fraction, i suppose.

00:56 A zero will cancel out, and then a three goes into both of those.

00:59 Three out of 10, which is going to be 30%.

01:04 Now let's look at b, right? b says that what's the probability of selecting who's majoring in management given that it's female? so given that it's female, we're only going to look at this female chart or female column, female row.

01:19 So what's the probability that given that they're female, that they are in management? well, how many females are there? 200, and how many of those are management? 50...

Question

A poll of 200 students were surveyed about their major. What is the probability of selecting an individual who is a management major Gender Management Marketing Others Total male 40 10 30 80 female 30 20 70 120 Total 70 30 100 200

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