Write probability as fraction
1. Sam flips two coins. Find probability of 1 head and 1 tail.
I think 2/4 or 1/2
2. You roll 1 number cube to show an odd number.
I think 3/6 or 1/2
3. Sheila has 8 apples; 5 of them are red.
I think 5/8
4. Of 12 books, 3 are fiction
I think 3/12 or 1/4
5. Two of 6CD's are scratched
2/6 or 1/3
6. Nine out of 10 teens like to shop
I think 9/10
1. Sam flips two coins. Find probability of 1 head and 1 tail.
I think 2/4 or 1/2
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yes, 4 possibilities including h,t and t,h so 2/4 = 1/2
2, yes 1/2
3. I guess you want p(red)which is 5/8
4.
You have to specify what you want, not imply it. What if the question asked what is the probability CD is ***NOT*** scratched or of NON-fiction
I am assuming the others are correct.
1. To find the probability of getting 1 head and 1 tail when flipping two coins, we need to determine the number of favorable outcomes (1 head and 1 tail) and the total number of possible outcomes.
The total number of outcomes when flipping two coins is 2 * 2 = 4 (since each coin can have 2 possible outcomes: heads or tails).
Out of these 4 total outcomes, there is only 1 outcome where you get 1 head and 1 tail (HT or TH).
Therefore, the probability of getting 1 head and 1 tail is 1/4.
2. To find the probability of rolling an odd number on a number cube, we need to determine the number of favorable outcomes (odd numbers) and the total number of possible outcomes.
A number cube has 6 faces, numbered from 1 to 6. Out of these 6 possible outcomes, there are 3 odd numbers (1, 3, 5).
Therefore, the probability of rolling an odd number is 3/6, which reduces to 1/2.
3. To find the probability of randomly selecting a red apple out of Sheila's 8 apples, we need to determine the number of favorable outcomes (red apples) and the total number of possible outcomes (total number of apples).
Since Sheila has 5 red apples out of her total 8 apples, the favorable outcome is 5.
Therefore, the probability of selecting a red apple is 5/8.
4. To find the probability of selecting a fiction book out of a collection of 12 books, we need to determine the number of favorable outcomes (fiction books) and the total number of possible outcomes (total number of books).
Since there are 3 fiction books out of the total 12 books, the favorable outcome is 3.
Therefore, the probability of selecting a fiction book is 3/12, which can be further simplified to 1/4.
5. To find the probability of randomly selecting a scratched CD out of 6 CDs, we need to determine the number of favorable outcomes (scratched CDs) and the total number of possible outcomes (total number of CDs).
Since there are 2 scratched CDs out of the total 6 CDs, the favorable outcome is 2.
Therefore, the probability of selecting a scratched CD is 2/6, which reduces to 1/3.
6. To find the probability of a teenager liking to shop out of a group of 10 teens, we need to determine the number of favorable outcomes (teens who like to shop) and the total number of possible outcomes (total number of teens).
Since there are 9 teens who like to shop out of the total 10 teens, the favorable outcome is 9.
Therefore, the probability of a teen liking to shop is 9/10.