CBSE › Class 9 › Maths › The Mathematics of Maybe: Introduction to Probability (Class 9 NCERT New)
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1. Based on the chart, what is the experimental probability of drawing a green marble?

2. Andrew picks one marble at a time from a box and replaces it. He repeats this process 25 times and records the results in the table. Based on the table, which color marble has an experimental probability of 1/5?

3. A bag contains black, grey and white balls. The probability of selecting a black ball is 0.3 and a grey ball is 0.6. What is the probability of selecting a white ball?

4. Which of the following events would be LEAST likely to occur?

5. In a bag of 40 marbles, 28 are blue. If a marble is selected 50 times with replacement, the number of blue marbles you would expect to select is:

6. You flip a coin 20 times and record the results. Is this experimental or theoretical probability?

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