Question

probability problems​

Answer 1

Answer:

1.Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

A. 1/2

B. 2/5

C. 8/15

D. 9/20

2. A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

A.10/ 21

B.11/21

C.2/7

D.5/7

3. In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?A. 1/3

3B. 3/4

4C. 7/19

19D. 8/21

21E. 9/21

4. What is the probability of getting a sum 9 from two throws of a dice?

What is the probability of getting a sum 9 from two throws of a dice?A. 1/6

6B. 1/8

8C. 1/9

9D. 1/12

5. Three unbiased coins are tossed. What is the probability of getting at most two heads?

Three unbiased coins are tossed. What is the probability of getting at most two heads?A. 3/4

4B. 1/4

4C. 3/8

8D. 7/8

Step-by-step explanation:

Here are some questions which van help u to practice probability chapter.

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