HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an event with a 100% probability of occurring
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an event with a 50% probability of occurring
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an event with a 0% probability of occurring
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An unlikely event
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Detailed explanation-1: -An event whose occurrence is 100% sure, those events are called certain events. The probability of such an event is always 1. Example: The probability of getting a number between 1 to 6 when rolling a die is a certain event.
Detailed explanation-2: -The probability of a certain event occurring depends on how many possible outcomes the event has. If an event has only one possible outcome, the probability for this outcome is always 1 (or 100 percent).
Detailed explanation-3: -The probability of a certain event is always 1 as the number of possible outcomes is always equal to the number of favourable outcomes for a certain event.
Detailed explanation-4: -An event which always happens is called a sure event or a certain event. So the probability of a certain event is 1. For example, when we throw a die, then the event “getting a number less than 7” is a certain event.
Detailed explanation-5: -Explanation: A sure event is an event, which always happens. For example, it’s a sure event to obtain a number between 1 and 6 when rolling an ordinary die. The probability of a sure event has the value of 1.