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Which of the following is closest to the average (arithmetic
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08 Oct 2018, 13:34
08 Oct 2018, 13:34
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Which of the following is closest to the average (arithmetic mean) of the 9 changes in the percentage of unemployed workers in Country X between consecutive years from 2000 to 2009?
A. .4%
B. .5%
C. .6%
D. .7%
E. 1.3%
Re: Which of the following is closest to the average (arithmetic
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23 Jul 2019, 21:35
23 Jul 2019, 21:35
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So, we first need to calculate the change of each year,
Change in the percentage of unemployed workers from 2000 to 2001 : 3.7 – 3 = 0.7
Change in the percentage of unemployed workers from 2001 to 2002 : 4.6 – 3.7 = 0.9
Change in the percentage of unemployed workers from 2002 to 2003 : 3 – 4.6 = -1.6
Change in the percentage of unemployed workers from 2003 to 2004 : 5.7 – 3 = 2.7
Change in the percentage of unemployed workers from 2004 to 2005 : 7 -5.7 = 1.3
Change in the percentage of unemployed workers from 2005 to 2006 : 6 -7 = -1
Change in the percentage of unemployed workers from 2006 to 2007 : 5.6 -6 = -0.4
Change in the percentage of unemployed workers from 2007 to 2008 : 6 – 5.6 = 0.4
Change in the percentage of unemployed workers from 2008 to 2009 : 8.5 – 6 = 2.5
So the average is = (0.7+0.9-1.6+2.7+1.3-1-0.4+0.4+2.5)/9= 5.5/9=0.61
Answer is C.
Change in the percentage of unemployed workers from 2000 to 2001 : 3.7 – 3 = 0.7
Change in the percentage of unemployed workers from 2001 to 2002 : 4.6 – 3.7 = 0.9
Change in the percentage of unemployed workers from 2002 to 2003 : 3 – 4.6 = -1.6
Change in the percentage of unemployed workers from 2003 to 2004 : 5.7 – 3 = 2.7
Change in the percentage of unemployed workers from 2004 to 2005 : 7 -5.7 = 1.3
Change in the percentage of unemployed workers from 2005 to 2006 : 6 -7 = -1
Change in the percentage of unemployed workers from 2006 to 2007 : 5.6 -6 = -0.4
Change in the percentage of unemployed workers from 2007 to 2008 : 6 – 5.6 = 0.4
Change in the percentage of unemployed workers from 2008 to 2009 : 8.5 – 6 = 2.5
So the average is = (0.7+0.9-1.6+2.7+1.3-1-0.4+0.4+2.5)/9= 5.5/9=0.61
Answer is C.
Re: Which of the following is closest to the average (arithmetic
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06 Aug 2019, 18:58
06 Aug 2019, 18:58
1
janani11 wrote:
So, we first need to calculate the change of each year,
Change in the percentage of unemployed workers from 2000 to 2001 : 3.7 – 3 = 0.7
Change in the percentage of unemployed workers from 2001 to 2002 : 4.6 – 3.7 = 0.9
Change in the percentage of unemployed workers from 2002 to 2003 : 3 – 4.6 = -1.6
Change in the percentage of unemployed workers from 2003 to 2004 : 5.7 – 3 = 2.7
Change in the percentage of unemployed workers from 2004 to 2005 : 7 -5.7 = 1.3
Change in the percentage of unemployed workers from 2005 to 2006 : 6 -7 = -1
Change in the percentage of unemployed workers from 2006 to 2007 : 5.6 -6 = -0.4
Change in the percentage of unemployed workers from 2007 to 2008 : 6 – 5.6 = 0.4
Change in the percentage of unemployed workers from 2008 to 2009 : 8.5 – 6 = 2.5
So the average is = (0.7+0.9-1.6+2.7+1.3-1-0.4+0.4+2.5)/9= 5.5/9=0.61
Answer is C.
Change in the percentage of unemployed workers from 2000 to 2001 : 3.7 – 3 = 0.7
Change in the percentage of unemployed workers from 2001 to 2002 : 4.6 – 3.7 = 0.9
Change in the percentage of unemployed workers from 2002 to 2003 : 3 – 4.6 = -1.6
Change in the percentage of unemployed workers from 2003 to 2004 : 5.7 – 3 = 2.7
Change in the percentage of unemployed workers from 2004 to 2005 : 7 -5.7 = 1.3
Change in the percentage of unemployed workers from 2005 to 2006 : 6 -7 = -1
Change in the percentage of unemployed workers from 2006 to 2007 : 5.6 -6 = -0.4
Change in the percentage of unemployed workers from 2007 to 2008 : 6 – 5.6 = 0.4
Change in the percentage of unemployed workers from 2008 to 2009 : 8.5 – 6 = 2.5
So the average is = (0.7+0.9-1.6+2.7+1.3-1-0.4+0.4+2.5)/9= 5.5/9=0.61
Answer is C.
Thanks. i wasn't considering the negatives
