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pickupchik [31]
3 years ago
12

The amount of postage placed on a first class letter depends on the weight of the letter .

Mathematics
1 answer:
Leviafan [203]3 years ago
3 0
Amount is directly proportional to weight
thus
A = kw               A  =  amount
                           k  = constant      ^    which is price per gram
                           w =  weight
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True or false please help
erik [133]
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Explanation:

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On the other hand,

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4 years ago
For a data consisting of 9 observations, the sum of 9 values is 360 and the sum of squares of deviation taken from the mean is 2
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Answer:

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Given that :

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[Σ(X - m) / n]

Variance = Sqrt(288 / 9)

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