Probability
Probability - Important Points
| 6. | A box contains 8 white balls and 6 black balls. If two balls are drawn at random with replacement, what is the probability of getting two white balls? |
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A. 1/7
B. 2/7
C. 4/7
D. 3/7
View Answer Discuss Work SpaceAnswer: option c
Explanation:
| 7. | In a box, there are 5 red pens and 7 blue pens. If two pens are drawn at random without replacement, what is the probability of getting a red pen followed by a blue pen? |
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A. 5/24
B. 7/24
C. 5/11
D. 7/11
View Answer Discuss Work SpaceAnswer: option c
Explanation:
| 8. | A box contains 4 red balls and 6 blue balls. Three balls are drawn at random with replacement. What is the probability of getting exactly two red balls? |
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A. 1/25
B. 3/25
C. 6/25
D. 9/25
View Answer Discuss Work SpaceAnswer: option b
Explanation:
| 9. | A standard deck of 52 cards is shuffled thoroughly. What is the probability of drawing a heart card and then a spade card (without replacement)? |
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A. 1/26
B. 1/34
C. 1/52
D. 1/104
View Answer Discuss Work SpaceAnswer: option b
Explanation:
| 10. | In a class, there are 8 boys and 6 girls. Two students are selected at random to represent the class. What is the probability of selecting two boys? |
|---|
A. 4/21
B. 16/91
C. 1/7
D. 2/7
View Answer Discuss Work SpaceAnswer: option b
Explanation:
Probability Questions and Answers FAQ
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