CBSE › Class 9 › Maths › The Mathematics of Maybe: Introduction to Probability (Class 9 NCERT New)
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1. The probability based on the concept of relative frequency theory is called

2. The probability of an event cannot be

3. The probability of all possible outcomes of a random experiment is always equal to

4. If A is any event in S and its complement is A' then, P(A') is equal to

5. Which of the following cannot be taken as probability of an event?

6. A particular result of an experiment is called

7. A collection of one or more outcomes of an experiment is called

8. The six faces of the dice are called equally likely if the dice is

9. The probability of it raining today is 30%. What is the probability that it will NOT rain?

10. You pick a marble from this bag.What is the probability you will choose either a black or white marble?

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