Question

A vending machine offers 8 different drinks. One day, 6 employees each purchased a drink from the vending machine. Find the probability that at least 2 employees purchased the same drink. Round your answer to the nearest hundredth.

Answer 1

@ganeshie8

Answer 2

hmm

Answer 3

each employee has 8 choices. So total cases = 8^6.
each employee has different drink:
Number of cases = 8*7*6*5*4*3.

for at least two have same drink
= total cases - when each have different drink
= 8^6 - 8*7*6*5*4*3.

probability = (8^6 - 8*7*6*5*4*3) / (8^6).

Answer 4

probability two or more have same drink
= 1 - probability no two have same drink

Answer 5

yeah i understand that but when i plugg it in calculatior i get wrong answer

Answer 6

@perl are those times signals

Answer 7

yes

Answer 8

the answer is 3781/4096 = .9230957

Answer 9

i was plugging in wrong hmm no wonder ahh thanks perl your so smart :)

Answer 10

@perl is it rounded to the nearest hundreth?

Answer 11

.92 :) nvm