1.

If mean of observation x, X+3, X+5, x+7,X+10 is 9. Then the mean of last threeobservations is111110102​

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Answer:

Answer

Mean of X,x+3,x+5,x+7,x+10=9

Sum of the terms =5x+25

Mean =  

5

5x+25

​  

=9

x+5=9

x=4

Last three OBSERVATIONS are 9,11,14

Mean =  

3

9+11+14

​  

=11  

3

1

​  

Step-by-step EXPLANATION:



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