Probability Level 3 -

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Test Code: MC14L3

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1. If you toss a coin 6 times and it comes down heads on each occasion. Can you say that the

probability of getting a head is 1?

A) True

B) False

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2. A student says that, if you throw a die, it will show up 1 or not 1. Therefore, the probability of getting 1 and the probability of getting not 1. each is equal to . Is this correct?

A) True

B) False

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3. If the probability of an event is P, then the probability of its completmentry event will be

A) 1

B) 1 – P/2

C) P – 1

D) 1 – P

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4. If I toss a coin 3 times and get head each time, should I expect a tail to have a higher chance

in the 4th toss?

A) True

B) False

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5. When we toss a coin, there are two possible outcomes-head or tail. Therefore, the probability of each outcome is 1/2 ?

A) True

B) False

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6. Someone is asked to take a number from 1 to 100. The probability that it is a prime,is

A) 6/25

B) 13/50

C) 1/5

D) 1/4

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7. If a card is selected from a deck of 52 cards, then the probability of its being a red face card

A) 2/13

B) 2/52

C) 1/52

D) 3/26

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8. The probability expressed as a percentage of a particular occurrence can never be

A) anything but a whole number

B) less than 0

C) greater than 1

D) less than 100

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9. Sushma tosses a coin 3 times and gets tail each time. Do you think that the outcome of next

toss will be a tail?

A) True

B) False

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10. A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from

house B, 5 from house C, 2 from house D and rest from house E. A single student is selected

at random to be the class monitor. The probability that the selected student is not from A, B

and C is

A) 6/23

B) 4/23

C) 17/23

D) 8/23

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11. Which of the following cannot be the probability of an event?

A) 3

B) 1/2

C) 17/16

D) 0.1

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12. A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000

tickets are sold, then how many tickets has she bought?

A) 480

B) 220

C) 420

D) 400

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13. When a die is thrown, the probability of getting an odd number less than 3 is ,

A) 1/2

B) 1/3

C) 1/6

D) 0

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14. If P (A) denotes the probability of an event A, then

A) 0 ≤ P(A) ≤ 1

B) P(A) < 0

C) P(A) > 1

D) -1 ≤ P(A) ≤ 1

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15. One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The

probability that the selected ticket has a number which is a multiple of 5 is

A) 1/5

B) 4/5

C) 1/2

D) 3/2

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16. The probability of getting a bad egg in a lot of 400 is 0.035. The number of bad eggs in the

lot is

A) 7

B) 21

C) 28

D) 14

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17. An event is very unlikely to happen. Its probability is closest to

A) 0.1

B) 0.0001

C) 0.001

D) 0.01

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18. The probability that a non-leap your selected at random will contains 53 Sunday is

A) 3/7

B) 5/7

C) 1/7

D) 2/7

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19. If an event cannot occur, then its probability is

A) 3/4

B) 1

C) 0

D) 1/2

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20. A card is drawn from a deck of 52 cards. The event E is that card is not an ace of hearts. The number of outcomes favourable to E is

A) 4

B) 48

C) 13

D) 51

Your score is

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