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If a number between 0 and 1 is selected at random, which of

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If a number between 0 and 1 is selected at random, which of [#permalink]

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New post 17 Apr 2012, 08:22
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If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2
[Reveal] Spoiler: OA
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Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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New post 17 Apr 2012, 08:31
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pradeepparihar wrote:
If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2


The number will most likely be between the largest range.

A. 0 and 3/20 --> range 3/20;
B. 3/20 and 4/20 --> range 1/20;
C. 4/20 and 5/20 --> range 1/20;
D. 5/20 and 6/20 --> range 1/20;
E. 6/20 and 10/20 --> range 4/20.

Answer: E.
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Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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New post 17 Apr 2012, 08:34
I converted the fractions to decimals and checked the range.

A) 0 and 0.15 > 0.15
B) .15 and 0.2 > 0.05
C) 0.2 and 0.25 > 0.05
D) 0.25 and 0.3 > 0.05
E) 0.3 and 0.5 > 0.2

E covers the largest range. Hence the ans is E.

pradeepparihar wrote:
If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2
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Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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New post 26 Apr 2012, 12:29
the answer should be E, since the larger range the larger probability of choosing a number from that range
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Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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New post 06 May 2016, 11:02
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Re: If a number between 0 and 1 is selected at random, which of   [#permalink] 06 May 2016, 11:02
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