Check my probability answer?

Question:
The table gives the classification of all the employees of a company by gender and college degree.If one of these employees is selected at random for a member ship on the employee management committee ,determine the following.

a)P(F intersection G)
(Table)

College grad.----not a college grad.-----total

Female-------3---------7--------------10
male----------6--------14--------------20
----------------9---------21-------------30

Attempt:
10/30I*3/30=1/30

Am I correct?
Thank you

There are three female graduates out of thirty employees.
Now think about the answer you gave.

Quote:

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Originally Posted by Plato

There are three female graduates out of thirty employees.
Now think about the answer you gave.

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Since they are joint probability we have to use the multiplication rule:
P(F intersection G)=P(F) * P(G/F)

P(F) = 10/30
P(G/F)=3/30
10/30 * 3/30 =1/30

You are asked to find .
But that is .

But also .

if was asked then





Am i correct?

Yes it is correct.
Out of thirty, how many male graduates are there?
Simply look at the table. It is quite clear.