A variable x takes values 1,2,3,4,5 with correspo

Question

A variable x takes values 1,2,3,4,5 with corresponding frequencies 1,2,3,4,5. Then the mean deviation of x from mean?

Samyak Jain · Accepted Answer

Values of x are 1,2,3,4,5 and corresponding frequencies are 1,2,3,4,5.Mean deviation of x from mean is [∑ |xi – |.fi] / [∑ fi ], where is mean, f is frequency.Now, mean, = ∑ xifi / ∑ fi = (1.1 + 2.2 + 3.3 + 4.4 + 5.5) / (1 + 2 + 3 + 4 + 5) = 55/15 = 11/3.∑ |xi – |.fi = |1 – 11/3|.1 + |2 – 11/3|.2 + |3 – 11/3|.3 + |4 – 11/3|.4 + |5 – 11/3|.5 = 8/3 + 10/3 + 6/3 + 4/3 + 20/3 = (8 + 10 + 6 + 4 + 20)/3 = 48/3 = 16. [∑ |xi – | fi] / [∑ fi ] = 16 / 15 = mean deviation of x from mean.

Vectors> A variable x takes values 1,2,3,4,5 with ...

A variable x takes values 1,2,3,4,5 with corresponding frequencies 1,2,3,4,5. Then the mean deviation of x from mean?

Kriti , 7 Years ago

Samyak Jain

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Vectors> A variable x takes values 1,2,3,4,5 with ...

A variable x takes values 1,2,3,4,5 with corresponding frequencies 1,2,3,4,5. Then the mean deviation of x from mean?

Kriti , 7 Years ago

Samyak Jain

LIVE ONLINE CLASSES

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