Answer:
See answers below
Step-by-step explanation:
If 4 coins are tossed. the total possible outcomes are;
H H H H
, H H H T, H H T H, H T H H, T H H H
, H H T T, H T T H, T T H H, H T H T, T H T H, T H H T
, H T T T, T H T T, T T H T, T T T H and T T T T
Total outcomes = 16
1) zero head = T T T T = 1 outcome
Probability = Expected/Total outcome
Pr(zero head) = 1/16
2) one head = H T T T, T H T T, T T H T, T T T H = 4 outcomes
Probability = Expected/Total outcome
Probability = 4/16
Pr(one head) = 1/4
3) two heads = H H T T, H T T H, T T H H, H T H T, T H T H, T H H T = 6 outcomes
Probability = Expected/Total outcome
Pr(two head) = 6/16
Pr(two head) = 3/8
4) three heads = H H H T, H H T H, H T H H, T H H H = 4 outcomes
Probability = Expected/Total outcome
Pr(three heads) = 4/16
Pr(two head) = 1/4
5) four heads appearing on the four coins = H H H H = 1 outcome
Pr(four heads) = 1/16
