There is a grouped data distribution for which mean is to be found by

1.	There is a grouped data distribution for which mean is to be found by step deviation method. For this purpose, the below table is constructed. Fill in the blanks Class IntervalNumber of Frequency(fi)Class mark(xi)di=xi−aui=dih0−1004050−200D......100−20039150B.....E.....200−3003425000300−400303501001400−50045450C.....F......TotalA.∑fi=...... The A, B, C, D, E and F respectively are
Answer» There is a grouped data distribution for which mean is to be found by step deviation method. For this purpose, the below table is constructed. Fill in the blanks $\begin{matrix} C l a s s I n t e r v a l & N u m b e r o f F r e q u e n c y (f_{i}) & C l a s s m a r k (x_{i}) & d_{i} = x_{i} - a & u_{i} = \frac{d_{i}}{h} 0 - 100 & 40 & 50 & - 200 & D . . . . . . 100 - 200 & 39 & 150 & B . . . . . & E . . . . . 200 - 300 & 34 & 250 & 0 & 0 300 - 400 & 30 & 350 & 100 & 1 400 - 500 & 45 & 450 & C . . . . . & F . . . . . . T o t a l & A . \sum f_{i} = . . . . . . \end{matrix}$ The A, B, C, D, E and F respectively are

There is a grouped data distribution for which mean is to be found by step deviation method. For this purpose, the below table is constructed. Fill in the blanks Class IntervalNumber of Frequency(fi)Class mark(xi)di=xi−aui=dih0−1004050−200D......100−20039150B.....E.....200−3003425000300−400303501001400−50045450C.....F......TotalA.∑fi=...... The A, B, C, D, E and F respectively are

Answer»

There is a grouped data distribution for which mean is to be found by step deviation method. For this purpose, the below table is constructed. Fill in the blanks

$\begin{matrix} C l a s s I n t e r v a l & N u m b e r o f F r e q u e n c y (f_{i}) & C l a s s m a r k (x_{i}) & d_{i} = x_{i} - a & u_{i} = \frac{d_{i}}{h} 0 - 100 & 40 & 50 & - 200 & D . . . . . . 100 - 200 & 39 & 150 & B . . . . . & E . . . . . 200 - 300 & 34 & 250 & 0 & 0 300 - 400 & 30 & 350 & 100 & 1 400 - 500 & 45 & 450 & C . . . . . & F . . . . . . T o t a l & A . \sum f_{i} = . . . . . . \end{matrix}$

The A, B, C, D, E and F respectively are

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