MathematicsProbability [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 1  7 of 36
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Question number: 1
» Mathematics » Probability
Question
The probability that in a family of 2 children, there will be at least one girl is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  1 
Question number: 2
» Mathematics » Probability
Question
A card is drawn from a packet of 120 cards numbered 1 to 120. The probability of drawing a number which is a square is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 3
» Mathematics » Probability
Question
If a coin is tossed thrice, the probability of getting at least one tail is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 4
» Mathematics » Probability
Question
The probability of three coins falling two tails and one head when tossed simultaneously is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 5
» Mathematics » Probability
Question
Two numbers are chosen from 13 to 21. The probability for the two numbers to be consecutive is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 6
» Mathematics » Probability
Question
A container contains 7 red and 11 yellow marbles. If a marble is drawn at random, the probability that the drawn marble to yellow is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 7
» Mathematics » Probability
Question
The probability that a consonant selected at random in English language is a ‘m’ is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  All of the above 