**1) The “Sum Of All Probabilities” is equal to**–

a. 4

b. 2

c. 3

d. 1

Answer:** d**

**2. Three coins were tossed 200 times. The number of times 2 heads appeared is 72. As a result, the probability of 2 heads coming up is**–

a. 1/25

b. 9/25

c. 7/25

d. 2/25

Answer:** b**

**3) A card is taken out from a well shuffled deck of 52 cards. What’s the probability of getting a king of the red suits?**

a. 3/36

b. 1/16

c. 3/26

d. 1/26

Answer: **b**

**4) A poll of 364 children age 19 to 36 months revealed that 91 of them enjoyed eating potato chips. The probability that a child chosen at random does not enjoy eating potato chips is**–

(a) 0.75

(b) 0.50

(c) 0.25

(d) 0.80

Answer: **a **

**5) 16 cards with the numbers 1, 2, 3,…, 16 are contained within a bag. A random card is chosen. What is the probability that a given number can be divided by 3?**

(a) 316

(b) 1316

(c) 1116

(d) 516

Answer: **d**

**6) The sum of the probabilities of all events of a trial is**–

(a) less than 1

(b) greater than 1

(c) 1

(d) between 0 and 1

Answer: **c**

**7) A & B throw a pair of dice. If A throws 9, then B has chance of throwing a huge number is**–

(a) 2/9

(b) 1/9

(c) 1/3

(d) 1/6

Answer: **d**

**8) A die is thrown 300 times & odd numbers are obtained 153 times. Then, the probability of getting an even no. is**–

(a) 147/300

(b) 153/300

(c) 147/153

(d) 174/300

Answer: **a**

**9) In a football match, a player hits Eight goals out of 60 balls. Find out the probability that the player did not hit the goal**–

(a) 11/15

(b) 13/15

(c) 8/15

(d) 4/5

Answer:** b**

**10) A bag contains 5 red balls & some grey balls. The probability of getting a blue ball is double that of a red ball. The no. of grey balls in the bag is**–

(a) 5

(b) 30

(c) 20

(d) 10

Answer:** d**

**11) Getting a tail is an event with outcome ____**

a) None

b) Head

c) Both a and b

d) Tail

Answer:** d**

**12) _____ is the set which includes all the events.**

a) Sample space

b) A trial

c) An event

d) None

Answer:** a**

**13) What is the probability of getting at least 3 heads when 3 coins are tossed simultaneously then**

a) 1

b) 8

c) -1/8

d) 1/8

Answer:** d**

**14) Three coins were tossed 200 times. The number of times 2 heads appeared is 72. As a result, the probability of 2 heads coming up is**–

(a) 9/25

(b) 2/25

(c) 7/25

(d) 1/25

Answer:** a**

**15) If the probability of an event to happen is 0.3 and the probability of the event not happening is: **

(a) 0.5

(b) 0.6

(c) 0.7

(d) None of the above

Answer:** c**

**16) There are 4 yellow & 2 white**** balls in a basket. What is the probability of getting the white balls? **

(a) 1/2

(b) 1/6

(c) 1/5

(d) 1/3

Answer:** d**

**17) Empirical probability is also called as- **

(a) Experimental probability

(b) Subjective probability

(c) Classic probability

(d) None of the above

Answer:** a**

**18) The probability of the events lies between**

(a) -1 ≤ p ≤ 1

(b) -1 < p ≤ 1

(c) -1 ≤ p ≤ 0

(d) 0 ≤ p ≤ 1

Answer:** d**

**19) Find the probability of a household earning more than 25000 per year & having 2 or more mobile set**

(a) .1.1

(b) .3.3

(c) .245.245

(d) None of these

Answer:** c**

**20) What is the probability of getting a queen from the deck of 52 cards?**

a. 1/13

b. 1/52

c. 1/26

d. 3/52

Answer:** a**