math -binomial probability
posted by bryanna .
astrid and iman are planing a vaction trip to the island of capri, where the probability of snow on any day is 0.35. what is the probability that during their five days on the island , they will have snow on exactly three of the five days?
the prob of snow on Capri is .35 ??? NOT!
could be snow on 3 days, 4 days, or all 5 days.
= C(5,3)(.35)^3(.65)^2 + C(5,4)(.35)^4(.65) + C(5,5)(.35)^5