Conditional Probability

Gizmo89

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Sep 22, 2019
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Conditional Probability

I don't understand the video that was sent to explain my math homework.
Is this just as simple as
1 a) asking me to put in P( 69, 36, 2)
b) P( 69, 112, 102, 13)
c) P (2)
d) P(13)
e) P(14)
f) P(2)
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Add a fifth colum and sum across the rows.
Add a final row and sum down the columns.

Add the final row and add the final column. What do you notice? What does this figure represent?

You will need some of these additional numbers to answer the questions.

For example:
(a) P(employee has less than a high school ed) = (Number of employees with less than a high school ed) / (Total number of employees)
 
So just to be sure I am understanding you correctly. There is a total of 107 (less than HS employees), but there is a total of 1,200 employees altogether. With that being said I write for a) P = 107/1200
 
So just to be sure I am understanding you correctly. There is a total of 107 (less than HS employees), but there is a total of 1,200 employees altogether. With that being said I write for a) P = 107/1200
That's correct. Well done.
 
Hey, thanks Harry for your help! With knowing that I was able to figure out a - d. For e. What does the "|" mean?
Am I just putting P = 14/ 224 = 1/16?
 
The symbol | means "given that". It basically reduces the size of the denominator. Yes 14/224 = 1/16 is correct.
 
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