HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1
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1-P(all)
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P(none)-1
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1-P(none)
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Detailed explanation-1: -To calculate the probability of an event occurring at least once, it will be the complement of the event never occurring. This means that the probability of the event never occurring and the probability of the event occurring at least once will equal one, or a 100% chance.
Detailed explanation-2: -If the probability of occurrence of an event A is not affected by the occurrence of another event B, then A and B are said to be independent events. P(A) = P(A│B) = 1/2, which implies that the occurrence of event B has not affected the probability of occurrence of the event A .
Detailed explanation-3: -P(makes at least one) = 1 – P(misses a given attempt) P(makes at least one) = 1 – (0.80) P(makes at least one) = 0.672.
Detailed explanation-4: -"At least one” is a mathematical term meaning one or more. It is commonly used in situations where existence can be established but it is not known how to determine the total number of solutions.