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# If two integers between тАУ5 and 3,

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CEO
Joined: 15 Aug 2003
Posts: 3467
Followers: 61

Kudos [?]: 719 [0], given: 781

If two integers between Ñ‚ÐÐ£5 and 3, [#permalink]  20 Sep 2003, 11:55
00:00

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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
If two integers between тАУ5 and 3, inclusive, are chosen at random, which of the following is most likely to be true?

a) The sum of the two integers is even.

b) The sum of the two integers is odd.

c) The product of the two integers is even.

d) The product of the two integers is odd.

e) The product of the two integers is negative.
Intern
Joined: 21 Jul 2003
Posts: 42
Location: India
Followers: 1

Kudos [?]: 0 [0], given: 0

(C) is the most likely event.

even * even= even
even * odd = even
Intern
Joined: 21 Jul 2003
Posts: 42
Location: India
Followers: 1

Kudos [?]: 0 [0], given: 0

On the assumption that 0 is considered even ....
SVP
Joined: 03 Feb 2003
Posts: 1607
Followers: 7

Kudos [?]: 87 [0], given: 0

Check it with calculation

(A) P(EE or OO)=4/9*3/8+5/9*4/8=32/72
(B) P(OE or EO)=5/9*4/8+4/9*5/8=40/72
(C) P(EE or EO or OE)=4/9*3/8+4/9*5/8+5/9*4/8=52/72
(D) P(OO)=5/9*4/8=20/72
(E) P(PN or NP, 0 is neither positive, nor negative)=3/9*5/8+5/9*3/8=30/72

(C)
Senior Manager
Joined: 02 Feb 2004
Posts: 345
Followers: 1

Kudos [?]: 26 [0], given: 0

Re: PS : Probability ..Most likely [#permalink]  21 May 2004, 13:13
Praetorian wrote:
If two integers between –5 and 3, inclusive, are chosen at random, which of the following is most likely to be true?

a) The sum of the two integers is even.

b) The sum of the two integers is odd.

c) The product of the two integers is even.

d) The product of the two integers is odd.

e) The product of the two integers is negative.

if I pick 3 & 1 how the product is even???
Re: PS : Probability ..Most likely   [#permalink] 21 May 2004, 13:13
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