Question

average of 30,40,45,50​

Answer 1

$\color{red} \boxed{ \sf \: Average\;=\; \frac{Sum\:of\: observation} {Number\:of\: observations}} \\ \\ \sf \: Average \: = \: \frac{30 \: + \: 40 \: + \: 45 \: + \: 50}{4} \\ \\ \sf \: Average \: = \: 41.25$

Answer 2

Answer:

41.25

Step-by-step explanation:

$average \: of \: 30,40,45,50 \\ = \frac{30 + 40 + 45 + 50}{4} = 41.25 \\ answer - 41.25$

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