Probability Question

[frog0101]

Hi, I found this question, however it doesn't come with answers. I got 3C0 (.72)^3, is this correct??
A given school in a certain state has 3 Mathematics teachers. The probability in the state that a mathematics teachers is female is 0.4.
In the same state, the probability that a mathematics teachers (male or female) is a graduate is 0.7. What is the probability that in the given school none of the three mathematics teachers is a female graduate.

Thanks 

[jamonwindeyer]

Hey!! So yep, the probability they are NOT a female graduate is:



And we need three of those, so yep that's correct