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When a number cube is rolled, what are the odds that a number with no curved lines will...

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maganda12 | (Level 2) Honors

Posted November 16, 2008 at 1:33 PM via web

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When a number cube is rolled, what are the odds that a number with no curved lines will be face up?

its a math question. please help me answer this.

thank you

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kbeth | Student, Undergraduate | eNotes Newbie

Posted November 17, 2008 at 8:55 AM (Answer #1)

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If our choices are numbers 1-6, the only numbers with no curved lines would be 1 and 4, so that's 2 out of 6 possibilities, or 1/3... or a 33.3% chance.

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eaglecat | High School Teacher | (Level 2) Adjunct Educator

Posted November 17, 2008 at 1:33 AM (Answer #2)

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This is a basic probability question that can be solved by using any calculator's cNr key.  You select the number of possible desired outcomes (in which a number with no curved lines comes up) and enter that number, press the cNr key (sometimes you must press the shift or second key to access it) and then you enter the total number of possible outcomes (rolls of the cube)and hit enter. 

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neon-ice-cream | Student, Grade 9 | (Level 1) Honors

Posted January 11, 2009 at 12:21 AM (Answer #3)

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1 2 3 4 5 6

it depends on your cube if you cube has a straight line for one (l) then it would be 2/6 or 1/3

if it has one written like this 1 then it would only be 1/6

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revolution | College Teacher | (Level 1) Valedictorian

Posted July 17, 2010 at 6:06 PM (Answer #4)

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From numbers 1 to 6, 1 and 4 have straight lines while 2,3,5,6 have curved lines, so the P(no curved lines)= 2/6=1/3

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