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Mathematics 9 Online
OpenStudy (anonymous):

a standard number cube with the numbers 1 through 6 is rolled. find the probability of rolling a number less than 3. find the probability of not rolling a number less that 3. answer choices a. 1/3, 2/3 b. 1/2, 1/2 c. 5/6, 1/2 d. 1/6, 5/6

OpenStudy (anonymous):

number cube? like a die?

OpenStudy (anonymous):

yes @satellite73 :)

OpenStudy (anonymous):

how many numbers are less than 3 on a "number cube"?

OpenStudy (anonymous):

2 i think

OpenStudy (anonymous):

yeah i think so too

OpenStudy (anonymous):

how many numbers total?

OpenStudy (anonymous):

i think 10

OpenStudy (anonymous):

have you ever seen a cube? or a pair of dice?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

OpenStudy (anonymous):

how many sides does a cube have?

OpenStudy (anonymous):

hint, it is definitely not ten sides

OpenStudy (anonymous):

6

OpenStudy (anonymous):

whew ok so the ratio is \(\frac{2}{6}\) for numbers less than three to the total number of sides

OpenStudy (anonymous):

reduce that fraction and you are done

OpenStudy (anonymous):

so its a @satellite73

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

thank you so much

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