MathematicsProbability [NSTSE (National Science Talent Search Exam Unified Council) Class 10]: Questions 1  8 of 50
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Question number: 1
» Mathematics » Probability
Question
If a coin is tossed twice, the probability of getting at least one head is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 2
» Mathematics » Probability
Question
In a throw of a dice, the probability of getting an even number is
Choices
Choice (4)  Response  

a. 
 
b.  6  
c. 
 
d.  2 
Question number: 3
» Mathematics » Probability
Question
The probability of getting an odd number when a die is rolled is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  2 
Question number: 4
» Mathematics » Probability
Question
The probability that in a family of 2 children, there will be at least one boy is
Choices
Choice (4)  Response  

a.  1  
b. 
 
c. 
 
d. 

Question number: 5
» Mathematics » Probability
Question
Two dice are thrown at a time. The probability that the difference of the numbers shown on the dice is 3 is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 6
» Mathematics » Probability
Question
Two numbers are chosen from 2 to 8. The probability for the two numbers to be consecutive is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 7
» Mathematics » Probability
Question
A card is drawn from a packet of 150 cards numbered 1 to 150. The probability of drawing a number which is a square is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 8
» Mathematics » Probability
Question
The probability for a randomly selected number out of 51,52,53,54, …. , 80 to be a prime number is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
