Last visit was: 24 Nov 2024, 05:03 It is currently 24 Nov 2024, 05:03

Close

GRE Prep Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Verbal Expert
Joined: 18 Apr 2015
Posts: 30017
Own Kudos [?]: 36370 [0]
Given Kudos: 25928
Send PM
Manager
Manager
Joined: 02 Sep 2024
Posts: 65
Own Kudos [?]: 4 [0]
Given Kudos: 11
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 30017
Own Kudos [?]: 36370 [0]
Given Kudos: 25928
Send PM
Manager
Manager
Joined: 02 Sep 2024
Posts: 65
Own Kudos [?]: 4 [0]
Given Kudos: 11
Send PM
Re: If range and standard deviation of some numbers are equal, then each o [#permalink]
Carcass wrote:
OE


Range is the difference between the highest & the lowest values of the set, which can be equal to the standard deviation only if all numbers in the set are equal
Also we know that the standard deviation of any set of numbers is always greater than or equal to zero, where zero is the standard deviation in only those sets in which all values are equal and in rest of the cases the standard deviation is strictly positive.
So, the standard deviation as well as the range of the set of equal numbers must be zero. Hence the answer is 0.


This assumes that the numbers are all the same. There is a possibility that the set can be something like {4,4,4}. Here, range = standard deviation = 0
Prep Club for GRE Bot
Re: If range and standard deviation of some numbers are equal, then each o [#permalink]
Moderators:
GRE Instructor
84 posts
GRE Forum Moderator
37 posts
Moderator
1111 posts
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne