A coin has two sides. One side has the number 1 on it and the other si...
- One approach to solve the problem is to list the different possibilities for a toss of coin three times. Because there are two outcomes and the coin is tossed three times, the table will have 2 x 2 x 2 or 8 rows.
- Next add the resulting rows together to find the sum (the fourth column in the table below).
- From the table we see that there are 4 situations where the sum of the tosses will be greater than 4. And there are 8 possible combinations resulting in a probability of
- 4/8 or a probability of 1/2. SO the correct answer is D.
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A coin has two sides. One side has the number 1 on it and the other si...
Probability of getting the sum greater than 4
To find the probability of getting a sum greater than 4 when flipping the coin three times, we need to consider all the possible outcomes.
Possible outcomes
When flipping a coin, there are a total of 2 possible outcomes for each flip - either a 1 or a 2. Since we are flipping the coin 3 times, the total number of possible outcomes is 2 * 2 * 2 = 8.
Favorable outcomes
To get a sum greater than 4, we need to consider the outcomes where the sum of the numbers on the landing side of the coin is greater than 4. These outcomes are:
- 2 + 2 + 2 = 6
Calculating the probability
The probability of getting a sum greater than 4 is given by the number of favorable outcomes divided by the total number of possible outcomes.
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 1 (favorable outcomes) / 8 (total possible outcomes)
Probability = 1/8
Therefore, the probability of getting a sum greater than 4 when flipping the coin three times is 1/8, which corresponds to option 'D'.
A coin has two sides. One side has the number 1 on it and the other si...
- One approach to solve the problem is to list the different possibilities for a toss of coin three times. Because there are two outcomes and the coin is tossed three times, the table will have 2 x 2 x 2 or 8 rows.
- Next add the resulting rows together to find the sum (the fourth column in the table below).
- From the table we see that there are 4 situations where the sum of the tosses will be greater than 4. And there are 8 possible combinations resulting in a probability of
- 4/8 or a probability of 1/2. SO the correct answer is D.