Question

Suppose 10 of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie used the random-number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents flights arriving early. The digits 1,2,3,4,5 and 6 represent flights arriving on time. The digits 7,8, and 9 represent flights arriving late.

Answer 1

Find the experimental probability that of the 5 flights, at least 2 will arrive late.

Answer 2

Answer choices are:
3/10
2/5
9/20
and 11/20