Statistics
From the following table, what was the value of the cumulative price for the product tablet?
Product | Price |
phone | 120 |
tablet | 200 |
blue-tooth | 90 |
(1) 300
(2) 310
(3) 320
(4) 330
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |
Statistics
The arithmetic mean and mode of a data are 24 and 12 respectively, Then the median of the data is
(1) 20
(2) 18
(3) 21
(4) 22
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Statistics
The mean yearly salary of an employee of acompany was Rs. 20,000. If the mean yearly salaries of male and female employees were Rs. 20800 and Rs. 16800 respectively, then the percentages of males and females employed in the company respectively are
(1) 80% and 20%
(2) 70% and 30%
(3) 55% and 45%
(4) 50% and 50%
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Statistics
A family spends Rs. 6,000 p.m. to meet the monthly expenditure. The expenditure has been shown in the given pie diagram. The miscellaneous expenditure is
(1) Rs. 1,500
(2) Rs. 2,000
(3) Rs. 1,200
(4) Rs. 3,000
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Statistics
Compute mode for the following data
7, 7, 8, 8, 8, 9, 9, 10, 10, 10, 11, 11, 12, 13, 13
1) 10.4
2) 10.2
3) 9.8
4) 10.5
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 4 Solution : -. |
Statistics
Find the median of the following values :
37, 31, 42, 43, 46, 25, 39, 45, 32
1) 31
2) 46
3) 39
4) 43
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |
Statistics
A school has 20 teachers, one of them retires at the age of 60 years and a new teacher replaces him, this change reduces the average age of the staff by 2 years, the age of new teacher is
(1) 28 years
(2) 25 years
(3) 20 years
(4) 18 years
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |
Statistics
If the median of the data x1,x2,x3,x4,x5,x6,x7,x8 is α and x1<x2<x3<x4<x5<x6<x7<x8, then the median of x3,x4,x5,x6 is
(1) α
(2) α / 2
(3) α / 3
(4) α / 4
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Statistics
The frequency distribution of marks obtained by 28 students in a test carrying 40 marks is given below
Marks | 0-10 | 10-20 | 20-30 | 30-40 |
Number of students | 6 | x | y | 6 |
If the mean of the above data is 20, then the difference between x and y is
(1) 3
(2) 2
(3) 1
(4) 0
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 4 Solution : -. |