Question

in school, 30% of the students have brown eyes. find the experimental probability that in a group of 4 students at least one of them has brown eyes

Answer 1

The experimental probability that in a group of 4 students at least one of them has brown eyes is 0.8496. This can be calculated by first calculating the probability of no students in the group having brown eyes, which is 0.7 x 0.7 x 0.7 x 0.7 = 0.2401. Then, subtracting this from 1 gives the probability of at least one of the students having brown eyes, which is 1 - 0.2401 = 0.8496.