You play a game that involves drawing two numbers from a hat. There are 25 pieces of paper numbered from 1 to 25 in the hat. Each number is replaced after it is drawn. Find the probability that you will draw the 3 on your first draw and a number greater than 10 on your second draw. Round your answer to the nearest tenth.about $\%$
Question
You play a game that involves drawing two numbers from a hat. There are 25 pieces of paper numbered from 1 to 25 in the hat. Each number is replaced after it is drawn. Find the probability that you will draw the 3 on your first draw and a number greater than 10 on your second draw. Round your answer to the nearest tenth.about
Solution
To solve this problem, we need to find the probability of two independent events happening in sequence.
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Probability of drawing a 3 on the first draw:
- There is only one piece of paper with the number 3 out of 25 pieces of paper.
- Therefore, the probability of drawing a 3 on the first draw is:
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Probability of drawing a number greater than 10 on the second draw:
- Numbers greater than 10 are 11, 12, 13, ..., 25. There are 15 such numbers.
- Since the number is replaced after the first draw, the total number of pieces of paper remains 25.
- Therefore, the probability of drawing a number greater than 10 on the second draw is:
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Combined probability of both events happening:
- Since the two events are independent, we multiply their probabilities:
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Convert the probability to a percentage:
- To convert the fraction to a percentage, we multiply by 100:
Therefore, the probability that you will draw the 3 on your first draw and a number greater than 10 on your second draw is approximately 2.4%.
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