HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a cup are the numbers 1-20. Find the theoretical probability of picking an even number.
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10/20
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1/2
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1/20
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20/20
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Explanation:
Detailed explanation-1: -1 Answer. Save this answer. Show activity on this post. Here obviously the probability of picking an even number is 1/2 since the odd and even terms must separatly have the same sum.
Detailed explanation-2: -The first even whole numbers are: 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and so on.
Detailed explanation-3: -Probability of an event =Number of favourable casesNumber of total cases, We get, probability of choosing a prime number from 1 to 20 =820=25. Therefore, we get the probability of choosing a prime number from 1 to 20 as 25or 0.4.
Detailed explanation-4: -From 1 to 20 (inclusive) there are 10 even numbers, so the probability of picking an even number is 10/20, or 1/2.
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