The secret society has 18 members, and each member a has 63 % chance of showing up for the annual meeting.

a). In the minimum requirement for the annual to start is that more than half of the members that show up, what is the probability that the annual meeting will start?

b). What is the expected number of members who show up? Round your answer to the nearest whole number.

c). What is the variance for the number of members that show up ? Round your abs we to the nearest whole number.