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 
