Question

In a distribution, N = 80, mean=592, then the mean deviation about the mean, is (a) 7.4 (b) 7.3 (c) 7.2 (d) 7.1​


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Answer 1

$option : (a) \: \: 7.4$

Step-by-step explanation:

$we \: \: know \: \: that \: \: \: \boxed{mean = \frac{ \sum \: x_{i} }{N} } \\ Given, \: \: \: \sum \: x_{i} = 592 \: \: \: and \: \: \: N = 80 \\ so \: \: \: mean = \frac{592}{80} = 7.4$

Answer 2

Answer:

c is answer

Step-by-step explanation:

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