The rate of on-time flights for commercial jets are continuously tracked by the US department of transportation. Recently Southwest Air had the best rate 80% of its flights arriving on time. A test is conducted by randomly selecting 34 southwest flights and observing whether they arrive on time.

a.Find the probability that exactly 10 flights arrive on time.

b. Find the probability that at least 10 flights arrive on time.

c. Find the probability that at least 10 flights arrive late.

d. Would it be unusual for southwest to have 5 flights arrive late? Why or why not?

Question

The rate of on-time flights for commercial jets are continuously tracked by the US department of transportation. Recently Southwest Air had the best rate 80% of its flights arriving on time. A test is conducted by randomly selecting 34 southwest flights and observing whether they arrive on time.

a.Find the probability that exactly 10 flights arrive on time.

b. Find the probability that at least 10 flights arrive on time.

c. Find the probability that at least 10 flights arrive late.

d. Would it be unusual for southwest to have 5 flights arrive late? Why or why not?

anonymous · Answer

c my medal