Consider the following distribution of SO2 concentration in the air (i

1.	Consider the following distribution of SO2 concentration in the air (in ppm = parts per million) in 30 localities. We wish to find the mean SO2 concentration using step assumed mean method. Fill the following table. Determine the assumed mean(a) and proceed. Class IntervalFrequency(fi)Class mark(xi)di=xi−a0.00−0.0440.02−0.080.04−0.0890.06A.........0.08−0.1290.10B........0.12−0.1620.140.040.16−0.2040.18C........0.20−0.2420.220.12Total∑fi=30 The value of A, B and C respectively are:
Answer» Consider the following distribution of $S O_{2}$ concentration in the air (in ppm = parts per million) in 30 localities. We wish to find the mean SO₂ concentration using step assumed mean method. Fill the following table. Determine the assumed mean(a) and proceed. $\begin{matrix} C l a s s I n t e r v a l & F r e q u e n c y (f_{i}) & C l a s s m a r k (x_{i}) & d_{i} = x_{i} - a 0.00 - 0.04 & 4 & 0.02 & - 0.08 0.04 - 0.08 & 9 & 0.06 & A . . . . . . . . . 0.08 - 0.12 & 9 & 0.10 & B . . . . . . . . 0.12 - 0.16 & 2 & 0.14 & 0.04 0.16 - 0.20 & 4 & 0.18 & C . . . . . . . . 0.20 - 0.24 & 2 & 0.22 & 0.12 T o t a l & \sum f_{i} = 30 \end{matrix}$ The value of A, B and C respectively are:

Consider the following distribution of SO2 concentration in the air (in ppm = parts per million) in 30 localities. We wish to find the mean SO2 concentration using step assumed mean method. Fill the following table. Determine the assumed mean(a) and proceed. Class IntervalFrequency(fi)Class mark(xi)di=xi−a0.00−0.0440.02−0.080.04−0.0890.06A.........0.08−0.1290.10B........0.12−0.1620.140.040.16−0.2040.18C........0.20−0.2420.220.12Total∑fi=30 The value of A, B and C respectively are:

Answer»

Consider the following distribution of $S O_{2}$ concentration in the air (in ppm = parts per million) in 30 localities. We wish to find the mean SO₂ concentration using step assumed mean method. Fill the following table. Determine the assumed mean(a) and proceed.

$\begin{matrix} C l a s s I n t e r v a l & F r e q u e n c y (f_{i}) & C l a s s m a r k (x_{i}) & d_{i} = x_{i} - a 0.00 - 0.04 & 4 & 0.02 & - 0.08 0.04 - 0.08 & 9 & 0.06 & A . . . . . . . . . 0.08 - 0.12 & 9 & 0.10 & B . . . . . . . . 0.12 - 0.16 & 2 & 0.14 & 0.04 0.16 - 0.20 & 4 & 0.18 & C . . . . . . . . 0.20 - 0.24 & 2 & 0.22 & 0.12 T o t a l & \sum f_{i} = 30 \end{matrix}$

The value of A, B and C respectively are:

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