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# Standard Deviation

Author Message
Senior Manager
Joined: 25 Dec 2003
Posts: 271
Location: India

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25 Jun 2004, 21:31
Hi

There seems to be an increase in Standard Deviation (SD) questions in the quant. After few workouts and some assistance from the Quant studs in this club, i got over with the Probability, Combination stuff.

Now, comes this SD stuff. I have not seen even a single SD question. What kind of a SD question does not encounter in the GMAT. Can anyone give an example. And also let me know where can I find the study material.

Guys I have my test on the 22of July.
Thanks Bros
Manager
Joined: 07 May 2004
Posts: 164
Location: Ukraine, Russia(part-time)

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26 Jun 2004, 01:15
carsen wrote:
Hi

There seems to be an increase in Standard Deviation (SD) questions in the quant. After few workouts and some assistance from the Quant studs in this club, i got over with the Probability, Combination stuff.

Now, comes this SD stuff. I have not seen even a single SD question. What kind of a SD question does not encounter in the GMAT. Can anyone give an example. And also let me know where can I find the study material.

Guys I have my test on the 22of July.
Thanks Bros

Look at the file:
Attachments

Standard deviation.doc [29.5 KiB]

Senior Manager
Joined: 25 Dec 2003
Posts: 271
Location: India

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26 Jun 2004, 03:42
Thanks Emman

Could you provide me with an example question on the SD, similar to what GMAT test (so that I can get a gist, a overall idea) to what limit does this go. This will help me make a decision on 'Should I eliminate studying for the SD' and concentrate on other stuff.

Regards
Manager
Joined: 07 May 2004
Posts: 164
Location: Ukraine, Russia(part-time)

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26 Jun 2004, 04:08
carsen wrote:
Thanks Emman

Could you provide me with an example question on the SD, similar to what GMAT test (so that I can get a gist, a overall idea) to what limit does this go. This will help me make a decision on 'Should I eliminate studying for the SD' and concentrate on other stuff.

Regards

1. There are 2 sets:

A = {100, 101, 102, 103, 104, 105, 106}

B = {97, 99, 101, 103, 105, 107, 109}

Standard deviation is larger for

A. set A

B. set B

C. they are equal

D. etc. etc.

2. Range of the set = 0. What is the standard deviation of this same set?

3. S.d. of the set = 0. What is the range of this same set?
Intern
Joined: 27 Dec 2003
Posts: 4
Location: London

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29 Jun 2004, 02:28
Emmanuel wrote:
carsen wrote:
2. Range of the set = 0. What is the standard deviation of this same set?

3. S.d. of the set = 0. What is the range of this same set?

Is the answer for both questions 2 and 3 above 0 ?

29 Jun 2004, 02:28

# Standard Deviation

Moderator: DisciplinedPrep