Question

Find the mean of 40,60,30 and 20​

Answer 1

Step-by-step explanation:

40+60+30+20=150/4

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Answer 2

Step-by-step explanation:

✯ Mean = $\frac{sum \: of \: all \:the \: observations}{total \: number \: of \: observations}$

∴ Mean

$= \frac{40 + 60 + 30 +20 }{4}$

$= \frac{150}{4}$

= 37.5

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