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# There is the Q-set consisting of 10 integers. Are they

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SVP
Joined: 03 Feb 2003
Posts: 1603

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There is the Q-set consisting of 10 integers. Are they [#permalink]

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19 May 2003, 23:00
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

There is the Q-set consisting of 10 integers. Are they equal?

(1) The range of Q is 0.
(2) The standard deviation of Q is 0.

Kudos [?]: 312 [0], given: 0

SVP
Joined: 03 Feb 2003
Posts: 1603

Kudos [?]: 312 [0], given: 0

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20 May 2003, 04:13
from either set we know that all numbers are equal.

(1) Range is a difference between the largest and the smallest. If it a zero, they are equal, as are all the rest.

(2) SD is a measure of 'scattering' from the ariphmetic average. If it is a zero, there is no scattering--all numbers are equal to their average. So they are all equal again.

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Intern
Joined: 18 Feb 2005
Posts: 47

Kudos [?]: 10 [0], given: 0

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18 Mar 2006, 21:02
ah...forgot all about the SD funda...

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Manager
Joined: 12 Feb 2006
Posts: 71

Kudos [?]: 3 [0], given: 0

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19 Mar 2006, 08:51
Good question. Had forgotten what range was
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19 Mar 2006, 08:51
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# There is the Q-set consisting of 10 integers. Are they

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