Math Problem Statement
Solution
The problem shown asks for the probability that two multiple-choice questions are answered correctly by random guessing. One question has 6 possible answers, and the other has 3 possible answers.
Solution:
To calculate the probability of guessing both questions correctly:
- The probability of guessing the first question correctly is (since there are 6 possible answers).
- The probability of guessing the second question correctly is (since there are 3 possible answers).
Since these events are independent (one guess doesn't affect the other), the overall probability is the product of the two individual probabilities:
To convert this to a percentage:
Thus, the probability that both responses are correct is 5.6% when rounded to one decimal place.
Would you like further clarification or details on this problem?
Here are 5 related questions:
- How do you calculate probabilities for more complex problems involving multiple guesses?
- How do independent events affect probability?
- What changes if the guesses are not random but based on some strategy?
- How would this probability change if the number of possible answers per question was increased?
- Can you explain how dependent events differ from independent ones in probability?
Tip: Always multiply the probabilities of independent events to find the combined probability.
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Math Problem Analysis
Mathematical Concepts
Probability
Independent Events
Formulas
P(correct) = 1/n, where n is the number of possible answers
Theorems
Multiplication Rule for Independent Events
Suitable Grade Level
Grades 8-10
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