Statistics and Probability (IMO Mathematics Olympiad (SOF) Class 9): Questions 36  41 of 101
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 36
» Statistics and Probability
Question
Algebraic sum of the deviation of a set of values of a data from their mean is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 37
» Statistics and Probability
Question
Two dice are thrown simultaneously. The probability of getting a multiple of 2 on one die and a multiple of 3 on the other is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 38
» Statistics and Probability
Question
The following observations have been arranged in the ascending order. If the median of the data 13,26,32,37, x + 2, x + 4,62,68,74,85 is 43, then the value of x is ________
Choices
Choice (4)  Response  

a.  44 

b.  42 

c.  40 

d.  46 

Question number: 39
» Statistics and Probability
Question
The probability of guessing the correct answer to a certain test question is . If the probability of not guessing the correct answer to this question is , then x = ________
Choices
Choice (4)  Response  

a. 


b.  2 

c.  3 

d. 


Question number: 40
» Statistics and Probability
Question
The average of 12 students is 15. The marks of a student who scored zero were wrongly taken as 18 and average was determined. The correct average marks is________
Choices
Choice (4)  Response  

a.  15 

b.  12 

c.  14.5 

d.  13.5 

Question number: 41
» Statistics and Probability
Question
The average weight of the students of a class is 30 kg. 3 new students with the average weight of 36 kg. Having joined the class, the average weight of the class is increased by 3 kg. Find the number of students in the class originally?
Choices
Choice (4)  Response  

a.  3 

b.  4 

c.  5 

d.  6 
