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If the first term in the data set above is 3, what is the third term? [#permalink]
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24 Feb 2017, 22:25
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{x, y, z} If the first term in the data set above is 3, what is the third term? (1) The range of this data set is 0. (2) The standard deviation of this data set is 0
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Re: If the first term in the data set above is 3, what is the third term? [#permalink]
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25 Feb 2017, 00:16
SajjadAhmad wrote: {x, y, z}
If the first term in the data set above is 3, what is the third term?
(1) The range of this data set is 0. (2) The standard deviation of this data set is 0 A set, by definition, is a collection of elements without any order. (While, a sequence, by definition, is an ordered list of terms.) So, it makes no sense talking about first term in the set.
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Re: If the first term in the data set above is 3, what is the third term? [#permalink]
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25 Feb 2017, 08:35
D Each statement alone s sufficient here Statement 1 Highest  lowest = range Means each term is same Statement 2 Standard deviation is 0 Means all r same D Sent from my SMG600FY using GMAT Club Forum mobile app



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Re: If the first term in the data set above is 3, what is the third term? [#permalink]
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25 Feb 2017, 11:01
Bunuel wrote: SajjadAhmad wrote: {x, y, z}
If the first term in the data set above is 3, what is the third term?
(1) The range of this data set is 0. (2) The standard deviation of this data set is 0 A set, by definition, is a collection of elements without any order. (While, a sequence, by definition, is an ordered list of terms.) So, it makes no sense talking about first term in the set. Bunuel ,, going by ur statement lets try to solve the problem,,, stat 1 is not suff,, stat 2 will be suff becoz,, in a set or sequence, standard deviation will be zero only when all the elements are same correct me if im rong.. skywalker



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Re: If the first term in the data set above is 3, what is the third term? [#permalink]
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26 Feb 2017, 03:16
mohshu wrote: Bunuel wrote: SajjadAhmad wrote: {x, y, z}
If the first term in the data set above is 3, what is the third term?
(1) The range of this data set is 0. (2) The standard deviation of this data set is 0 A set, by definition, is a collection of elements without any order. (While, a sequence, by definition, is an ordered list of terms.) So, it makes no sense talking about first term in the set. Bunuel ,, going by ur statement lets try to solve the problem,,, stat 1 is not suff,, stat 2 will be suff becoz,, in a set or sequence, standard deviation will be zero only when all the elements are same correct me if im rong.. skywalkerIt does not make much sense to talk about the correct answer of a flawed question. Topic locked.
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Collection of Questions: PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.
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Re: If the first term in the data set above is 3, what is the third term?
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