If the mean of three observations x+3, x+5, x+7 is 15, find x.
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2
Answer:
10 is the value of x
Step-by-step explanation:
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Answered by
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Step-by-step explanation:
x+3+x+5+x+7=15
3x+15=15
3x=15-15
3x=0
x=0/3
x= 0
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