HARD
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In a certain distribution, mean and median are 9.5 and 10, respectively. Find the mode of the distribution, using an empirical relation?

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Important Questions on Statistics

EASY
What is the difference between the mean and median of the given data: 4, 13, 8, 15, 9, 21, 18, 23, 35, 1?
EASY

What is the median of the given data?

41, 43, 46, 50, 85, 61, 76, 55, 58, 95.

EASY
What is the median of the numbers 29,27,32,23,18,18,32,31,28,15,35,30 ?
MEDIUM

The data below shows the number of wickets by each bowler and the number of bowlers who took them.

Number of Wickets per bowler Number of Bowlers
5 2
4 3
3 4
2 5
1 9

What is the median of the number of wickets?

MEDIUM

The median of the following data is 525. Find the values of x and y, if total frequency is 100.

Class 0-100 100-200 200-300 300-400 400-500 500-600 600-700 700-800 800-900 900-1000
Frequency 2 5 x 12 17 20 y 9 7 4
EASY

What is the median of the given data?

41,43,46,50,85,61,76,55,68,95

EASY
The algebraic sum of deviations of 10 observations measured from 15 is 10. The mean of the observations is
EASY
What is the sum of median and mode of the data 8, 1, 5, 4, 9, 6, 3, 6, 1, 3, 6, 9, 1, 7, 2, 6, 5?
HARD

The median of the following data is 525. Find the values of x and y, if the total frequency is 100.

Class Interval Frequency
0-100 2
100-200 5
200-300 x
300-400 12
400-500 17
500-600 20
600-700 y
700-800 9
800-900 7
900-1000 4
HARD
In a city, the total income of all people with salary below Rs. 10000 per annum is less than the total income of all people with salary above Rs. 10000 per annum. If the salaries of people in the first group increases by 5% and the salaries of people in the second group decreases by 5%, then the average income of all people
EASY
What is the median of 7, 18, 6, 9, 4, 15, 21, 14, 26?
MEDIUM

The table given below shows the salaries of 280 persons.

Salary in thiusand  Number of persons
5-10 49
10-15 133
15-20 63
20-25 15
25-30 6
30-35 7
35-40 4
40-45 2
45-50 1

Calculate the median salary of data. (in â‚¹)

EASY
What is the median of 6, 9, 13, 8, 3, 2, 5, 7 and 11?
EASY

The marks of Nine students in ascending order for a test are given below with Median as 34, the value of k is:

12, 16, k, 28, k+5, 32, 39, 47, 53

EASY

Let x be the median of data :33, 42, 28, 49, 32, 37, 52, 57, 35, 41.

If 32 is replaced by 36 and 41 by 63, then the median of the data, so obtained is y. What is the value of x+y?

EASY

What is the mode of the given data?

4, 3, 4, 3, 2, 2, 2, 5, 5, 3, 4, 6, 4, 3, 3

EASY

What is difference between mean and median of the given data:

4, 6, 3, 7, 10, 13, 16 and 5?

MEDIUM

Find the range and mode of the data 17, 18, 28, 19, 16, 18, 17, 29, 18.

1. 12, 18 2. 13, 18 3. 12, 17 4. 11, 17

MEDIUM

If the median of the following frequency distribution is 32.5. Find the values of f1 and f2.

Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80
Frequency f1 5 9 12 f2 3 2 40
MEDIUM

The table below shows the salaries of 280 persons:

Salary(In thousand ) Number of persons
510 49
1015 133
1520 63
2025 15
2530 6
3035 7
3540 4
4045 2
4550 1

Calculate the median salary of the data in , rounded off to the nearest whole number.