HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Picking 2 students to be the line leader and the door holder from a group of 20 students
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Picking 2 marbles from a bag without replacing the first marble
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Picking 2 crayons from a box without putting any back
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Picking an earring, replacing it, then picking a 2nd earring
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Detailed explanation-1: -Dependent events influence the probability of other events – or their probability of occurring is affected by other events. Independent events do not affect one another and do not increase or decrease the probability of another event happening.
Detailed explanation-2: -More formally, we say that when two events are dependent, the occurrence of one event influences the probability of another event. Simple examples of dependent events: Not paying your power bill on time and having your power cut off. Being the first person to enter a movie theater and finding a good seat.
Detailed explanation-3: -Two events A and B are said to be independent if the fact that one event has occurred does not affect the probability that the other event will occur. If whether or not one event occurs does affect the probability that the other event will occur, then the two events are said to be dependent.
Detailed explanation-4: -An independent event is an event in which the outcome isn’t affected by another event. A dependent event is affected by the outcome of a second event.