MathematicsStatistics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 1  9 of 83
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Question number: 1
» Mathematics » Statistics
Question
The arithmetic mean of first six natural numbers is
Choices
Choice (4)  Response  

a.  3  
b.  28  
c.  4  
d.  7 
Question number: 2
» Mathematics » Statistics
Question
The average weight of sample of 6 Oranges is 30 g. Later it was found that the weighing machine had shown the weight of each Orange 5 g less. The correct average weight of an Orange is
Choices
Choice (4)  Response  

a.  75 g  
b.  35 g  
c.  55 g  
d.  40 g 
Question number: 3
» Mathematics » Statistics
Question
The mean of 7 observations is 58. If one observation, namely 4 is deleted, the new mean is
Choices
Choice (4)  Response  

a.  61  
b.  62  
c.  65  
d.  67 
Question number: 4
» Mathematics » Statistics
Question
The runs scored by Sachin in 7 test matches are 133,140,138,150,156,148 and 143 respectively. Find his mean.
Choices
Choice (4)  Response  

a.  144  
b.  133  
c.  156  
d.  148 
Question number: 5
» Mathematics » Statistics
Question
The runs scored by Mahi in 5 test matches are 150,163,158,160 and 164 respectively. Find his mean.
Choices
Choice (4)  Response  

a.  164  
b.  158  
c.  150  
d.  159 
Question number: 6
» Mathematics » Statistics
Question
The mean of first five multiples of 5 is
Choices
Choice (4)  Response  

a.  5  
b.  15  
c.  25  
d.  20 
Question number: 7
» Mathematics » Statistics
Question
The value of is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 8
» Mathematics » Statistics
Question
The mean of first eight odd numbers is
Choices
Choice (4)  Response  

a.  5  
b.  7.75  
c.  12  
d.  8 
Question number: 9
» Mathematics » Statistics
Question
The price (in Rs. ) of 7 Pens are 15,21,14,25,28,19,31. The median is
Choices
Choice (4)  Response  

a.  25  
b.  19  
c.  31  
d.  21 