Statistics and Probability (IMO Mathematics Olympiad Class 9): Questions 7  14 of 101
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Question number: 7
» Statistics and Probability
Question
Determine the probability that a digit chosen at random from the digits 1, 2, 3… 9 will be a multiple of 3 is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 8
» Statistics and Probability
Question
The median of the following numbers 25, 27, 21, 23, 24 is________
Choices
Choice (4)  Response  

a.  25 

b.  21 

c.  24 

d.  23 

Question number: 9
» Statistics and Probability
Question
The following observations have been arranged in the ascending order. If the median of the data 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95 is 63, then the value of x is ________
Choices
Choice (4)  Response  

a.  60 

b.  61 

c.  63 

d.  62 

Question number: 10
» Statistics and Probability
Question
If three coins are tossed simultaneously, what is the probability of getting at least two heads?
Choices
Choice (4)  Response  

a.  3 

b. 


c.  2 

d. 


Question number: 11
» Statistics and Probability
Question
The mean of 30 items is x and if each item is increased by 5, then its mean will be ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 12
» Statistics and Probability
Question
If the mode of the following data 4, 3, 2, 5, p, 4, 5, 1, 7, 3, 2, 1 is 3, then value of p is ________
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  1 

d.  4 

Passage
One card id drawn from a wellshuffled deck of 52 cards. Find the probability of drawing
Question number: 13 (1 of 4 Based on Passage) Show Passage
» Statistics and Probability
Question
‘2’ of spades.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 14 (2 of 4 Based on Passage) Show Passage
» Statistics and Probability
Question
‘10’ of a black suit
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

