Math 9th Chap 11 : Topic 3 - Maryam Publications

Math Chapter 11 : Topic 3

Event Probability

1 / 25

A die is rolled once. What is the probability of getting an even number?

A) $2/3$

B) $1/3$

C) $1/2$

D) $5/6$

2 / 25

A card is drawn from a deck. Probability of getting a red card is:

A) $1/2$

B) $3/4$

C) $2/3$

D) $1/4$

3 / 25

Probability of an impossible event is:

A) $0$

B) Undefined

C) $1$

D) $1/2$

4 / 25

If probability of an event is $0.7$, probability of it not occurring is:

A) $0.3$

B) $0$

C) $0.7$

D) $1.7$

5 / 25

A bag contains $5$ red and $3$ blue balls. Probability of selecting a red ball is:

A) $2/3$

B) $1/2$

C) $5/8$

D) $3/8$

6 / 25

Probability of not getting a head when tossing a coin:

A) $2$

B) $0$

C) $1/2$

D) $1$

7 / 25

If $P(A) = 1$, then event $A$ is:

A) Impossible

B) Likely

C) Certain

D) Uncertain

8 / 25

A number is selected from $1$ to $10$. Probability it is greater than $8$:

A) $4/10$

B) $2/10$

C) $3/10$

D) $1/10$

9 / 25

Probability of not selecting a vowel from letters $A$, $B$, $C$, $D$, $E$:

A) $2/5$

B) $3/5$

C) $4/5$

D) $1/5$

10 / 25

Which relation is always true?

A) $P(A) - P$ (not $A$) $= 1$

B) $P(A) + P$ (not $A$) $= 0$

C) $P(A) \times P$ (not $A$) $= 1$

D) $P(A) + P$ (not $A$) $= 1$

11 / 25

A spinner has $4$ equal sections. Probability of landing on one section:

A) $1/4$

B) $1$

C) $1/2$

D) $1/3$

12 / 25

Probability of selecting a number divisible by $3$ from $1 - 9$:

A) $2/3$

B) $1/3$

C) $4/9$

D) $1/9$

13 / 25

If $P(A) = 0.25$, then $P$ (not $A$) $=$ _________.

A) $0.75$

B) $1$

C) $0.5$

D) $0.25$

14 / 25

A die is rolled. Probability of not getting $6$:

A) $5/6$

B) $2/3$

C) $1/2$

D) $1/6$

15 / 25

Which event has probability closest to $0$?

A) Random

B) Likely

C) Certain

D) Impossible

16 / 25

A student randomly selects a day of week. Probability it is not Sunday:

A) $1/7$

B) $6/7$

C) $5/7$

D) $1/2$

17 / 25

Probability of selecting an odd number from $1 - 6$:

A) $1/2$

B) $2/3$

C) $3/4$

D) $1/3$

18 / 25

If an event has no favorable outcomes, its probability is:

A) $1/2$

B) $1$

C) $0$

D) Undefined

19 / 25

A card is drawn. Probability of not getting a king:

A) $1/13$

B) $9/13$

C) $12/13$

D) $4/13$

20 / 25

Which statement is correct?

A) Probability is always negative

B) Probability can be greater than $1$

C) Probability cannot be zero

D) $0 \leq P(A) \leq 1$

21 / 25

Probability of selecting a consonant from English vowels $(A$, $E$, $I$, $O$, $U)$:

A) $0$

B) $1$

C) $4/5$

D) $1/5$

22 / 25

A bag has $10$ balls, all red. Probability of selecting a blue ball:

A) $1/2$

B) $10$

C) $0$

D) $1$

23 / 25

Probability of getting a number less than $7$ on a die:

A) $1$

B) $5/6$

C) $0$

D) $6/7$

24 / 25

If $P(A) = 0.6$, then which is true?

A) $P$ (not $A$) $= 0$

B) $P$ (not $A$) $= 0.4$

C) $P$ (not $A$) $= 1.6$

D) $P$ (not $A$) $= 0.6$

25 / 25

A number is chosen from $1 - 20$. Probability it is not divisible by $5$:

A) $3/5$

B) $4/5$

C) $2/5$

D) $1/5$

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