. If the mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, find the value of x.
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Mean = 11 so total sum / 5
So the sum would be 11 x 5
= 55
So we want to do is already present numbers - total
=0+2+4+6+8 = 20
55-20=35
So x = 35/5 = 7
Verify:
7+(7+2)+(7+4)+(7+6)+(7+8)=55
So it is clear that x = 7
So the sum would be 11 x 5
= 55
So we want to do is already present numbers - total
=0+2+4+6+8 = 20
55-20=35
So x = 35/5 = 7
Verify:
7+(7+2)+(7+4)+(7+6)+(7+8)=55
So it is clear that x = 7
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hey buddy here is the right answer!!
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