Which of the following experiments have equally likely outcomes? Explain.
(I) A driver attempts to start a car. The car starts or does not start.
(ii) A player attempts to shoot a basketball. She/he shoots or misses the shot.
(ii) A trial is made to answer a true-false question. The answer is right or wrong. (iv) A
(iv) baby is born. It is a boy or a girl.
Answers
ANSWER
i) Equally likely outcome because either the car starts or does not. There can be no other possibility.
ii) Equally likely outcome because either the goes through the basket or it does not. There can be no other possibility.
iii) Equally likely outcome because in a true or false type of question, either the answer is correct or wrong. There can be only 2 possibilities or no other possibility.
iv) Equally likely outcome because either the child born is a girl or a boy. There can be no other possibility.
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Answer:
(i) A driver attempts to start a car. The car starts or does not start.
ans
This experiment does not have equally likely outcomes. The probability of outcomes depends on the condition of car.
(ii) A player attempts to shoot a basketball. She/he shoots or misses the shot.
ans
This experiment does not have equally likely outcomes. The probability of outcomes depends on the skills of player.
(iii)A trial is made to answer a true-false question. The answer is right or wrong.
ans
This experiment has equally likely outcomes because answer is either true or false and any person would answer either true or false. The probability of giving right answer is 0.5 and also, the probability of giving wrong answer is 0.5.
(iv)A baby is born. It is a boy or a girl.
ans
It has equally likely outcomes. The probability that baby is going to be boy is 0.5 and the probability that baby is going to be girl is also 0.5.