Complete the mcq:
Q1. A city had an average of 2.6 lightning storms per month. What is the probability of at least 3 lightning storms during a month?
A. 12.26%
B. 21.76 %
C. 26.40%
D. 48.16%
E. none of the above
Q2. If the number of miles per gallon (mpg) achieved by cars of a particular model has a mean of 25 and a standard deviation of 2, what is the probability that, for a random sample of 20 such cars, the average mpg will be less than 24? Assume population distribution is normal.
A. 0.125
B. .1443
C. .2875
D .3026
E. none of the above