Section: Math Section 3

64) The probability of obtaining all heads or tails when three coins are tossed simultaneously is:

1. 1/3
2. 1/4
3. 1/5
4. 1/8
5. 1/33

To find the probability of tossing three of the coins, you would take the probability of tossing one to the third power: (1/2)^3=1/8. Because the word 'or' is used in the equation, you will have multiply 2*(1/8) resulting in 1/4.