Question

if the mean of five observations x, x+2, x+4, x+5, x+3 is 11. find the means of first three observation​

Answer 1

ANSWER

⇒Given observations x,x+2,x+4,x+5,x+8

⇒∵ 5x+(x+2)+(x+4)+(x+6)+(x+8) =

x+(x+2)+(x+4)+(x+6)+(x+8) =11

x+(x+2)+(x+4)+(x+6)+(x+8) =11⇒ 55x+20

5x+20

5x+20 =11⇒x=7

So, the observations are 7,9,11,13,15

So, the observations are 7,9,11,13,15Req. mean = 311+13+15 =13*

⇒

$\huge\colorbox{orange}{ABHINàv࿐ ❤}$

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