It was recentlyfound that for all patients calling medical advice line claiming to have the flu, only about 15%truly has the flu (and not just a nasty cold).

Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu.

a)Find the probabilitythatin thissample of 25,exactly 3callers actually have the flu.

b)Find the probabilitythat in the sample of 25,at most 3callers actually have the flu