What is the probability of tossing two coins and having them both land on heads?

Solution:

You can multiply the probabilities of each single outcomes in this case

For first coin the probability of head is = 1/2

For second coin the probability of head is also = 1/2

(2 X 2) ←- According to permutation theorem when objects repetition is allowed the sample would be 4 for 2 coin tosses

Sample Space = {HH, HT, TH, TT}

For getting head in first coin = 1/2

For getting head in second coin = 1/2

Probability for getting both head for 2 coins = 1/2 × 1/2 = 1/4

What is the probability of tossing two coins and having them both land on heads?

Summary:

The probability of tossing two coins and having them both land on heads is 1/4.