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An experiment consists of flipping a coin and then rolling a die What is the probability of observing a head on the coin or a 3 on the die?
The probability of flipping a Head is the same as that for a Tail and is 1/2 or 50%. The probability of rolling a particular number on a die is 1/6 since there are 6 numbers. Combining these two probabilities (by multiplication) we have, as the combined probability 1/2 x 1/6 = 1/12 = 0.0833333333333333(the 3 recurs) which as a percentage is 8.33333333333%
What is the probability of getting one head when flipping a coin three times?
The probability is 3/8.The probability is 3/8.The probability is 3/8.The probability is 3/8.
What is the probability of rolling an even number and a head when rolling a die and then tossing a coin?
-3/12
What is the probability of rolling a number less than 5 and a head when rolling a die and then tossing a coin?
The probability of rolling a number less than 5; which is a 4, 3, 2, or 1 is 4/6 or 2/3. The probability of tossing a head is 1/2. So, the probability of a roll less than 5 and a head is 2/3*1/2 or 1/3 or 0.333. 4/12
What are complementary events in probability?
Complementary events are events that are the complete opposite. The compliment of event A is everything that is not event A. For example, the complementary event of flipping heads on a coin would be flipping tails. The complementary event of rolling a 1 or a 2 on a six-sided die would be rolling a 3, 4, 5, or 6. (The probability of A compliment is equal to 1 minus the probability of A.)
