Question

How to find mean median and mode for ungrouped data?​

Answer 1

Answer:

it's not possible..

firstly you have to make the given data

ascending order..

then the middle no. will be the median.

Answer 2

Answer: Mean, median and mode are called 'Measures of Central Tendency'.  

Mean: Average of a given data is called mean.

Median: The middle most value of a given data is called median.

Mode: The most frequently occurring value in a given data is called mode.  

What is ungrouped data?

==> Single data is called ungrouped data.

For example- Marks obtained by a student in class X in 5 subjects (out of 80): 60, 70, 55, 80, 65  

Question: How to find mean, median and mode for ungrouped data?​

Solution:

Finding mean-

Mean= Sum of observations/ Number of observations

In the above case, mean= (60+70+55+80+65)/6= 330/6= 55 marks  

Finding median-

Median= Middle most value after arranging in ascending or descending order

In the above case, data after ascending order, 55, 60, 65, 70, 80

Median= (n+1)th term/2 where n= number of observations (n= odd)

Median= (1/2) (n/2)th term+ (n/2 + 1) th term where n= number of observations (n= even)  

In the above case, data after ascending order, 55, 60, 65, 70, 80

n= odd (5)

Median= (n+1)th term/2 = (5+1)th term/2= 6th term/2= 3rd term= 65 marks  

Finding mode-

Mode= Most frequently occurring value  

Here, no value is occurring frequently. So, there's no mode.