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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1053
GPA: 3.39
Which of the following distributions has the greatest stan
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12 Mar 2020, 04:47
12 Mar 2020, 04:47
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Question Stats:
42% (01:50) correct
57% (00:43) wrong based on 7 sessions
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Which of the following distributions has the greatest standard deviation?
(A) {-1, 1, 3}
(B) {1, 2, 5}
(C) {0, 4, 5}
(D) {-3, -1, 2}
(E) {2, 3, 6}
(A) {-1, 1, 3}
(B) {1, 2, 5}
(C) {0, 4, 5}
(D) {-3, -1, 2}
(E) {2, 3, 6}
Re: Which of the following distributions has the greatest stan
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20 Apr 2020, 15:52
20 Apr 2020, 15:52
1
Expert Reply
(A) {-1, 1, 3} Gaps between adjacent terms = 2 each place
(B) {1, 2, 5} Gaps between adjacent terms = 1 and 3
(C) {0, 4, 5} Gaps between adjacent terms = 4 and 1
(D) {-3, -1, 2} Gaps between adjacent terms = 2 and 3
(E) {2, 3, 6} Gaps between adjacent terms = 1 and 3
SD of B = SD of E
SD of A < SD of D
Largest gap is in Option C hence
Answer: Option C
(B) {1, 2, 5} Gaps between adjacent terms = 1 and 3
(C) {0, 4, 5} Gaps between adjacent terms = 4 and 1
(D) {-3, -1, 2} Gaps between adjacent terms = 2 and 3
(E) {2, 3, 6} Gaps between adjacent terms = 1 and 3
SD of B = SD of E
SD of A < SD of D
Largest gap is in Option C hence
Answer: Option C
gmatclubot
Re: Which of the following distributions has the greatest stan [#permalink]
20 Apr 2020, 15:52
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