Question

If y fidi - 108 and 'fi-100, then find d​

Answer 1

Answer:

fi * di = 108

100di =108

di=108/100=54/50=27/25=

Answer 2

The value of d = 1.08

Given :

$\displaystyle \sf \sum f_id_i = 108 \: \: and \: \: \sum f_i = 100$

To find :

The value of d

Solution :

Step 1 of 2 :

Write down the given data

Here it is given that

$\displaystyle \sf \sum f_id_i = 108 \: \: and \: \: \sum f_i = 100$

Step 2 of 2 :

Find the value of d

We know that

$\displaystyle \sf{d = \frac{\sum f_id_i}{\sum f_i} }$

Putting the given values we get

$\displaystyle \sf{d = \frac{108}{100} }$

$\displaystyle \sf{ \implies d = 1.08}$

Hence the required value of d = 1.08

Correct question : If $\displaystyle \sf \sum f_id_i = 108 \: \: and \: \: \sum f_i = 100$ then find d

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