With use of a specifed prescription drug there is a 30 chanc

With use of a specifed prescription drug there is a 30% chance of experiencing nosebleeds, 50% chance of experiencin migraines. There is a 15% chance of experiencing both side effects.

what is the probability of experiencing neither of the side effects?

a. 15%

b. 35%

c.40%

d. 65%

d. 80%

Solution

P [ nosebleed or migraine ] = P [ nosebleed ] + P [ migraine ] - P [ nosebleed and migraine ]
= 30% + 50% - 15% = 65%......
so, Prob [ experiencing neither of the side effects ] = 100% - 65% = 35%....