Jambmaths
Maths Question  

Question 41 
A dice is rolled 240 times and the result depicted in the table above. If a pie chart is constructed to represent the data, the angle corresponding to 4 is 

Question 42 
The table above shows the frequency distribution of ages (in years) of pupils in a certain secondary, what percentage of the total number of pupils is over 15 but less than 21 years 

Question 43 
The table above shows the frequency distribution of ages (in years) of pupils in a certain secondary The cumulative frequency curve above represent the ages of students in a school which age group do 70% of the students belong 

Question 44 
Find the sum of the range and mode of the set of numbers 10,5, 10, 9,8, 7,7,10, 8,10, 8,4, 6,9,10,9,10,9,7,10,6,5. 

Question 45 
If the mean of number 0, x, x + 2, 3x + 6, and 4x + 8 is 4. Find the mean deviation 

Question 46 
The variance of x, 2x, 3x, 4x and 5x is 

Question 47 
In how many can a delegation of 3 be chosen from among 5 men and 3 women. If at least one man and at least one woman must be included. 

Question 48 
In how many ways can the word “MATHEMATICS” be arranged? 

Question 49 
X and Y are two events. The probability of X or Y is 0.7 and the probability of X is 0.4. If X and Y are independent. Find the probability of Y 

Question 50 
If U ={x: x is an integer and 1≤ x ≤ 20} E_{1} = {x: x is a multiple of 3} E_{2} = {x: x is a multiple of 4} and an integer is picked at random from U, find the probability that it is not in E_{2}
