There are a total of 15 people in an application pool, that are equally qualified for a job. The pool consists of;

7 females  and 8 males

 There are 4 job openings for 4 different people. Type your answers as a decimal to 4 decimal places. 

1. What is the probability that all 4 people are female?  

2. What is the probability that not all 4 people are female?  

3. What is the probability that none of the 4 people are female?  

4. What is the probability that two are female and 2 are male?