PROBABILITY QUIZ GRADE 9

The probability of an event lies between

• 0 and 100

• 0 and -1

• 0 and 1

• 1 and 100

The sum of all the probabilities of an even is

• 0

• 1

• -1

• 100

In a cricket match a batsman hits a boundary 6 times out of 30 balls he plays, the probability that he did not hit a boundary is

• 1/5

• 2/5

• 3/5

• 4/5

In a sample study of 500 people it was found that 300 people are computer savvy. If a person is selected at random, the probability that the person is not computer savvy is

• 0.5

• 0.6

• 0.4

• 0.3

which of the following cannot be probability of an event ?

• 0

• 1

• 1/3

• 4/3

A bag contains 4 red balls and 3 black balls. If one ball is drawn at random, find the probability that it is red

• 7/4

• 4/7

• 3/7

• 7/3

Class 9A consist of 45 students out of which 15 are boys and rest are girls, find the probability of selecting a girl student

• 1/3

• 2/3

• 1

• 4/3

If an alphabet is selected randomly in English, find the probability that it is a consonant

• 5/26

• 6/26

• 20/26

• 21/26

A dice is thrown once find the probability of getting a number less than 3

• 2/3

• 1

• 1/3

• 4/3

In a survey of 200 children , it was found that 142 likes outdoor games while 58 like indoor games. Find the probability that a child chosen at random likes indoor games

• 0.71

• 0.72

• 0.28

• 0.29