Math, asked by AdithyaDS8264, 1 year ago

If mean the observation x,x+3,x+7,x-10 is 9 find the fourth observation

Answers

Answered by kandiahsubramanian
0

Answer:-1


Step-by-step explanation:

mean =x+x+3+x+7+x-10/4

9=4x/4

x=9


Fourth observation=x-10

=9-10=-1

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