Question

4 Who's paying? Ari, Betty, Charlie, Daniela, and
Ethel go to the bagel shop for lunch every Thurs-
day. Each time, they randomly pick 2 of the
group
to pay for lunch by drawing names from a hat.
(a) Give a probability model for this chance process.
b) Find the probability that Charlie or Daniela (or
both ends up paying for lunch.

Answer 1

Answer:

2/125 or 1.6%

Step-by-step explanation:

Charlie has 20% chance of paying for lunch

Daniela also has 20% chance of paying for lunch

Together they have 40% of paying for lunch

so you multiply (.20 )(.20)(.40)=.016