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If it were discovered that the unemployment rate for Country

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If it were discovered that the unemployment rate for Country [#permalink] New post   08 Oct 2018, 13:39
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If it were discovered that the unemployment rate for Country Y shown for 2003 was incorrect and should have been 6% instead, then the average (arithmetic mean) unemployment rate per year for the 10 years shown would have been off by approximately how many percentage points?

A. 0.25

B. 0.3

C. 2.5

D. 3

E. 25
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jelal123
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Re: If it were discovered that the unemployment rate for Country [#permalink] New post   02 Jul 2019, 00:46
How can we call it APPROXIMATION as the number count to the highest precision ?
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Re: If it were discovered that the unemployment rate for Country [#permalink] New post   02 Jul 2019, 01:09
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Because in certain years such as 2001 the data points are not integers (3.5)

The average cannot be an integer as well. For this they use \(\approx\)
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Re: If it were discovered that the unemployment rate for Country [#permalink] New post   23 Jul 2019, 10:58
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In 2003, the actual unemployment rate is 8.5% and it is incorrect, If it were 6% instead.
Average unemployment rate for the 10years will be (8.5-6)/10= 2.5/10=0.25
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