the weight of a sample of creates containing books for the strce are in kgs 103 ,97 ,10 ,106, 103 ,than mean deviation from mean of data
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the value of cos ec A -cot A is
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mean deviation = 29.4
Step-by-step explanation:
Given data
the weight sample are 103 ,97 ,10 ,106, 103
here we need to find mean deviation from mean of the data
now find the mean of given data
mean = sum of the weights ÷ number of observations
= 103+97+10+106+103 / 5
= 83.8
deviations from mean
⇒ |103 - 83.8|, |97-83.8|, |10-83.8|, |106-83.8|, |103-83.8|
⇒ 19.2, 13.2, 73.8, 22.2, 19.2
⇒ sum of the deviations = 147.6
the formula for mean deviation
= sum of deviations / number of observations
= 147.6/ 5 = 29.4
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