1.

If the mean value of x, 6,8,9and 12 is 8,then the value of x is...

Answer»

ANSWER:

x = 4

Step-by-step EXPLANATION:

A.M= SUM of all OBSERVATIONS / totalno.ofobservations  

⇒8= 6+10+x+12 / 4  

⇒32=6+10+x+12

⇒x=32−28

⇒x=4



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