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The sum of the probabilities of all the elementary events of an experiment is .

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Important Questions on Probability

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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 1
The probability of an event is greater than or equal to 0 and less than or equal to _____ .
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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 2

Which of the following experiments have equally likely outcomes? Explain.

A driver attempts to start a car. The car starts or does not start.

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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 2
Does the below experiment have equally likely outcomes? Explain.
A player attempts to shoot a basketball. She/he shoots or misses the shot.

 

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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 2
Does the following experiment has an equally likely outcomes or not? Explain.
A trial is made to answer a true-false question. The answer is right or wrong.
 
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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 2
Does the experiment 'A baby is born. It is a boy or a girl.' have equally likely outcomes? Explain.
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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 3
Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?
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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 4
Which of the following cannot be the probability of an event?
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MATHEMATICS Textbook for Class X>Chapter 15 - Probability>Exercise 15.1>Q 5
If PE=0.05, what is the probability of ‘not E’?