Question

if fiui is =29,fi=30,a=47.5 and h=15,find the value of x

Answer 1

Step-by-step explanation:

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Answer 2

The value of $\bf \bar{x}= 62$

Given :

$\sf \sum \: f_iu_i = 29, \sum \: f_i = 30,a = 47.5,h = 15$

To find :

The value of $\sf \bar{x}$

Solution :

Step 1 of 2 :

Write down the given data

Here it is given that

$\sf \sum \: f_iu_i = 29, \sum \: f_i = 30,a = 47.5,h = 15$

Step 2 of 2 :

The value of

$\displaystyle \sf{ \bar{x} = a + h \times \frac{ \sum \:f_i u_i}{ \sum \:f_i } }$

$\displaystyle \sf{ \implies \bar{x} = 47.5+ 15 \times \frac{29}{30} }$

$\displaystyle \sf{ \implies \bar{x} = 47.5+ \frac{29}{2} }$

$\displaystyle \sf{ \implies \bar{x} = 47.5+ 14.5 }$

$\displaystyle \sf{ \implies \bar{x} = 62 }$

The value of $\sf \bar{x} = 62$