Hi

In a class of 40 students, 14 of which are girls, 6 students are to be selected at random. 

 a. In how many ways can their teacher choose 6 students? 40C6= 3838380

 b. In how many ways can their teacher form a committee consisting of 3 girls and 3 boys? = 946,400 ways

 c. In how many ways can their teacher form a committee consisting of 2 girls?

 d. What is the probability that at least two girls are chosen

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