In a shop there are 25 customers, 14 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?
A) 0.1583
B) 0.1695
C) 0.2502
D) 0.2786

Question

In a shop there are 25 customers, 14 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?
A) 0.1583 
B) 0.1695 
C) 0.2502 
D) 0.2786

anonymous · Answer

A

anonymous · Answer

can you show me how? I have midterms tomorrow and need to know how

anonymous · Answer

probability for the first person chosen to make a purchase = 14/25
                                     second person= 13/24
                                   third person= 12/23

anonymous · Answer

so for all three to occur at the same time, u multiply all three together

anonymous · Answer

oh thats whats i missed divide by 3 thank oyu

anonymous · Answer

np