Question

Explain the method of construction of frequency distribution.

Answer 1

Explanation:

ok see this is the answer...

Answer 2

CONSTRUCTION OF A FREQUENCY DISTRIBUTION

To prepare a frequency distribution from the given raw data we may use the following steps:

$\underline{\rm STEP \: I }$

Obtain the given raw data.

$\underline{\rm STEP \: II }$

Prepare a table with three columns-first for variable under study such as marks, weight, height etc., second for 'Tally marks' and third for the total, representing corresponding frequency to each value of size of the variable.

$\underline{ \rm STEP \: III}$

Place all the values of the variable in the first column in ascending order.

$\underline {\rm \: STEP \: IV}$

Take the first observation in the raw data and put a bar in the second column opposite to it. Then take the second observation in the given raw data and put a bar opposite to it. Continue this process till all the observations in the given raw data are exhausted. For the sake of convenience, record tally marks in bunches of five, the fifth is obtained by crossing diagonally the other four. Leave some space between each block of bars.

$\underline{ \rm STEP \: V}$

Count the number of bars (tally marks) in respect of each value of the variable and place it in the third column.

$\underline{ \rm STEP \: VI}$

Give a suitable title to the frequency distribution table so that it conveys exactly what the table is about.