3. Historical data show that 8% of donors who book an appointment to donate blood in a clinic in Ottawa cancel their appointments and 3% do not show up (without cancelling their appointments).

a. What is the probability that a person who has booked a donation appointment will not attend for donation?

Note: not attending can be due to either cancelling or not showing up without cancellation.

b. 20 people have already booked appointments for donation for next Monday's clinic. What is the probability that 5 of them will not attend for donation?

c. 60 people have already made appointments for next Saturday. What is the probability that 8 of them will not attend for a donation? Hint: Use Poisson approximation to Binomial.

4. A manager posted a job on LinkedIn and Indeed. She received total of 10 applications. 6 of them were submitted through LinkedIn and the rest through Indeed. If we select 3 different applications, what is the probability that 2 are submitted through LinkedIn?