Question

Example 7: A bag contains 30 white balls, 20 red balls,
and 40 black balls. If a ball is taken out at random, find
2. Find the probability that a letter selected at random from the letters of the English alphabet is a VORE
Find the probability of picking a prime number from the well-shuffled cards numbered 1 to 12.
Total number of outcomes = 30 + 20 + 40-
the probability of getting a red or a black ball.
5. In the following spinning wheel, find the probability of the pointer stopping at a composite numbe
Solution: Number of favourable outcomes
Probability =
Number of favourable outcomes
Total number of outcomes
90
= 40 + 20 = 60
EXERCISE 13.1
1. Give two examples of a random experiment.
3.
A box contains 100 bulbs out of which 22 are defective. Find the probability of getting a
non-defective bulb out of the box.
5
18
16
2​

Answer 1

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