A public relations intern realizes that she forgot to assemble the consumer panel her boss asked her to do. She panics and I decides to randomly ask (independent) people if they will work on the panel for an hour. Since she is willing to pay them for their work, she believes she will
I have a 75% chance of people agreeing to work with her.
a. What is the expected number of people she will need to ask until she finds 5 who will agree to participate?
b. What is the standard deviation in the number of people she will need to ask until she finds 5 who will agree to participate?
c. Show the labeled graph of the mass for this story.
d. Show the labeled graph of the CDF for this story.