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Standard XI

Statistics

Classification and Its Types

The actual sa...

Question

The actual sales of product in different months of a particular year are given below.

Jan. feb. Mar. Apr. May June July

120 110 300 250 310 170 ?

The forecast for sales in July using the 4 month weighted moving average is

241

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427

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257

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271

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Solution

The correct option is A 241
$F_{J u l y} = 0.1 \times D_{M a r .} + 0.2 \times D_{A p r .} + 0.3 \times D_{M a y} + 0.4 \times D_{J u n e}$

$= 0.1 \times 300 + 0.2 \times 250 + 0.3 \times 310 + 0.4 \times 170 = 241$

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The actual sales of product in different months of a particular year are given below. Jan. feb. Mar. Apr. May June July 120 110 300 250 310 170 ? The forecast for sales in July using the 4 month weighted moving average is

The correct option is A 241FJuly=0.1×DMar.+0.2×DApr.+0.3×DMay+0.4×DJune =0.1×300+0.2×250+0.3×310+0.4×170=241

The actual sales of product in different months of a particular year are given below.

Jan. feb. Mar. Apr. May June July

120 110 300 250 310 170 ?

The forecast for sales in July using the 4 month weighted moving average is

The correct option is A 241
$F_{J u l y} = 0.1 \times D_{M a r .} + 0.2 \times D_{A p r .} + 0.3 \times D_{M a y} + 0.4 \times D_{J u n e}$

$= 0.1 \times 300 + 0.2 \times 250 + 0.3 \times 310 + 0.4 \times 170 = 241$