Data from the NCHS indicate that approximately 70% of pediatric care visits are routine annual checkups where the child receives at least one vaccination. A local pediatric clinic sees about 30 children per day. For each of the following events, identify the kind of random variable being described and calculate the probability of the event: a. The local clinic has fewer than 10 children visit on a given day
b. The local clinic has at least 20 but no more than 40 children visit on a given day
c. The local clinic has no more than 30 children visit on a given day, knowing that they will have at least 20 visitors that day
d. The local clinic has 30 children visit on a given day and exactly 10 of them are there for a routine vaccination visit
e. The local clinic has 20 children visit and at least 15 of them are there for a routine vaccination visit
f. The local clinic has 20 children visit and the first child presenting for a routine vaccination visit is the third patient seen that day
g. The local clinic has 20 children visit and the first child presenting for a routine vaccination is the last patient of the day