Question

The phone calls to a computer software help desk occur at the rate of 2.1 per minute between 3:00 p.m. and 4:00 p.m. Compute the probability that the number of calls between 3:10 p.m. and 3:15 p.m. is

Answer 1

Answer:

The probability is 1/12

Step-by-step explanation:

Probability is given by number of possible outcomes ÷ number of total outcomes

Rate of phone calls = 2.1 per minute

Total number of calls between 3:00 p.m and 4:00 p.m (60 minutes) = 2.1 × 60 = 126

Number of calls between 3:10 p.m and 3:15 p.m (5 minutes) = 2.1 × 5 = 10.5

Probability = 10.5/126 = 1/12