What percent of students answered 15 or more questions correctly?

If I'm thinking right then the answer should be 5% ?

There's 8 students total if I'm correct?

2 people got 15.

2 people got 16.

1 person got 17.

2+2+1=5

2 person got 14.

1 person got 12.

2+1=3                        There's 8 students total. but the answer should be 5%.

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: