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getzgetzu
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What is the median of 10 one-digit numbers? 1) Mean of them 06 May 2006, 03:42
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What is the median of 10 one-digit numbers?

1) Mean of them is 8.8
2) Range of them is 2



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What is the median of 10 one-digit numbers? 1) Mean of them 16 May 2006, 19:33
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Answer is A.

For a median lower than 9, at least five of the ten numbers must be lower than 9. 5x8=40, 5x9=45, 40+45=85, which falls short of 88.

Range doesn't tell us anything (1111111113, 7777777779)
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What is the median of 10 one-digit numbers? 1) Mean of them 17 May 2006, 08:40
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A

St1: Only possibility is 9999999988 : SUFF

St2: Could be anything 1111111123, 1222222223, 1233333333 and so on....: INSUFF
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Professor
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What is the median of 10 one-digit numbers? 1) Mean of them 17 May 2006, 11:29
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ps_dahiya
A

St1: Only possibility is 9999999988 : SUFF
Show more


9+9+9+9+9+9+9+9+9+7+8 = 88


there are two possibilities.
1. 8x9+2x8 = 88
2. 9x9+1x7 = 88
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What is the median of 10 one-digit numbers? 1) Mean of them 17 May 2006, 11:37
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ps_dahiya
A

St1: Only possibility is 9999999988 : SUFF

9+9+9+9+9+9+9+9+9+7+8 = 88


there are two possibilities.
1. 8x9+2x8 = 88
2. 9x9+1x7 = 88
Show more


Thanks buddy. But by chance both possibilities are giving the same results. :)
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What is the median of 10 one-digit numbers? 1) Mean of them 19 May 2006, 13:41
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ps_dahiya
A

St1: Only possibility is 9999999988 : SUFF

St2: Could be anything 1111111123, 1222222223, 1233333333 and so on....: INSUFF
Show more


What about the possibility of 9999889999? The median is now 8
If you consider 9999988999, the median is 8.5
if its 8899999999, its 9

Am I missing something? Please clarify.
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What is the median of 10 one-digit numbers? 1) Mean of them 19 May 2006, 15:01
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shreyaswini
ps_dahiya
A

St1: Only possibility is 9999999988 : SUFF

St2: Could be anything 1111111123, 1222222223, 1233333333 and so on....: INSUFF

What about the possibility of 9999889999? The median is now 8
If you consider 9999988999, the median is 8.5
if its 8899999999, its 9

Am I missing something? Please clarify.
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Median can be found ONLY after arranging the set in ascending or descending order.
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What is the median of 10 one-digit numbers? 1) Mean of them 19 May 2006, 22:56
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getzgetzu
What is the median of 10 one-digit numbers?

1) Mean of them is 8.8
2) Range of them is 2

A.
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Not really 8*9 + 2*8 = 88 and 9*9 + 1*7 = 88.

If the range is 2 then u know the difference between highest and lowest is 2 and the answer is 9,9,9...(9 times) and 7(1 time) is the answer.

Answer is C.
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What is the median of 10 one-digit numbers? 1) Mean of them 19 May 2006, 23:19
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saha
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getzgetzu
What is the median of 10 one-digit numbers?

1) Mean of them is 8.8
2) Range of them is 2

A.

Not really 8*9 + 2*8 = 88 and 9*9 + 1*7 = 88.

If the range is 2 then u know the difference between highest and lowest is 2 and the answer is 9,9,9...(9 times) and 7(1 time) is the answer.

Answer is C.
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Ah but i missed the question completely. asks for the median and i was trying to find the numbers.. need to remember to read the question carefully on the gmat
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What is the median of 10 one-digit numbers? 1) Mean of them 20 May 2006, 09:07
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ps_dahiya
A

St1: Only possibility is 9999999988 : SUFF

9+9+9+9+9+9+9+9+9+7+8 = 88


there are two possibilities.
1. 8x9+2x8 = 88
2. 9x9+1x7 = 88
Show more


so in first case the median is (8+9)/2 = 8.5
in second case it will be (7+9)/2= 8

So C . Saha can you please explain why you posted a correction.

The question is what is the median
not
can you find a median ! :)
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What is the median of 10 one-digit numbers? 1) Mean of them 21 May 2006, 15:31
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I go with A.
We are mainly concerned about 5th and 5th numbers when arranged in order.
If there are only five 9's, the total of remaning nos can never be greater than 40.
There has to be more than five 9s.



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