Question 729561
For each student the probability of dropping out is 0.1 (10% as a decimal), and the probability of not dropping out is {{{1-0.1=0.9}}}
Assuming that what happens to one student does not affect what happens to the others (independent events), the probability of all 10 staying in school until graduation is
{{{0.9*0.9*0.9*0.9*0.9*0.9*0.9*0.9*0.9*0.9=0.9^10=0.35(rounded)}}}
The probability that none of the 10 students drops out is 35%.