Maths-

General

Easy

Question

# Marks scored by 100 students in a 25 marks unit test of Mathematics is given below Their median is

- 12
- 12.62
- 12.3
- 12.7

Hint:

**Median for grouped data ** =

## The correct answer is: 12.62

### Given :

Marks scored by 100 students in a 25 marks unit test of Mathematics is given below

Steps to find Median

Step 1: Find the total number of observations(n) = 100

Step 2: Define the class size(h), and divide the data into different classes, h = 5

Step 3: Calculate the cumulative frequency of each class.

Marks
Students
Cumulative Frequency
0-5
10
10
5-10
18
28
10-15
42
70
15-20
23
93
20-25
7
100
= 100 = n

Step 4: Identify the class in which the median falls. (Median Class is the class where n/2 lies.)

Step 5: Find the lower limit of the median class(l), and the cumulative frequency of the class preceding the median class (c).

Lower limit of median class (l) = 10

Cumulative frequency of the class preceding the median class (c) = 28

Step 6 : Substituting these values in the formula :

### Related Questions to study

Maths-

### The mode for the following frequency distribution

### The mode for the following frequency distribution

Maths-General

Maths-

### The median of the following data is

### The median of the following data is

Maths-General

Maths-

### The median of the following data is

### The median of the following data is

Maths-General

Maths-

### The median from the following data is

### The median from the following data is

Maths-General

Maths-

### The median of the following frequency distribution

### The median of the following frequency distribution

Maths-General

Maths-

### The value of median for the data given below is

### The value of median for the data given below is

Maths-General

chemistry-

### Which of the following solutions has the highest normality-

### Which of the following solutions has the highest normality-

chemistry-General

Maths-

### The frequency distribution of the marks obtained by 100 students in a test carrying 50 marks is given below Then the mean is

### The frequency distribution of the marks obtained by 100 students in a test carrying 50 marks is given below Then the mean is

Maths-General

Maths-

### The number of students absent in a class were recorded every day for 120 days and the information is given in the following frequency table Then the mean number of students absent per day is

### The number of students absent in a class were recorded every day for 120 days and the information is given in the following frequency table Then the mean number of students absent per day is

Maths-General

chemistry-

### The molarity of 0.04NBa(OH)2 as a base is-

### The molarity of 0.04NBa(OH)2 as a base is-

chemistry-General

chemistry-

### Which of the following is correct-

### Which of the following is correct-

chemistry-General

chemistry-

### Which represent percent by strength-

### Which represent percent by strength-

chemistry-General

chemistry-

### What is the normality of 1MH3PO4 solution?

### What is the normality of 1MH3PO4 solution?

chemistry-General

Maths-

### Six faces of a balanced die are numbered from integers 1 to 6 This die is tossed 60 times and the frequency distribution of the integers obtained is given below Then the mean of the grouped data is

### Six faces of a balanced die are numbered from integers 1 to 6 This die is tossed 60 times and the frequency distribution of the integers obtained is given below Then the mean of the grouped data is

Maths-General

Maths-

### If 5 is added to each and every item of a data, then the A.M is

### If 5 is added to each and every item of a data, then the A.M is

Maths-General