Assignment:
Discuss the below:
Mary Tosses a coin 3 times and john does the same.
A) Find probability Mary obtains one head. I have that answer which i think is 1/33 or 33%, but do I include John's tosses also in that?
b) Find the probability that Mary obtains exactly one head and so does John. Here I thought to do 1/2 times 1/2 = 1/4 is that right?
c) Find the joint probability that each of them obtain exactly 2 heads.
d) Find the joint probability that each of them obtain exactly 3 heads.
(e) Find the joint probability that each of them obtains no heads.
Find the probability that they obtain the same number of heads by using parts b, c, d and e.