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Mathematics 9 Online
OpenStudy (anonymous):

Which table correctly shows all the sample spaces for tossing a coin and rolling an odd number on a six-sided number cube?

OpenStudy (anonymous):

OpenStudy (anonymous):

OpenStudy (anonymous):

a and b are first picutre c and d are last picture

OpenStudy (anonymous):

@hotguy

OpenStudy (anonymous):

@horsegirl27

OpenStudy (horsegirl27):

@welshfella @waterineyes @Mr.Z

OpenStudy (welshfella):

well the numbers on cube must be 1 , 3 or 5 and coin has to be heads or tails

OpenStudy (anonymous):

@Preetha

OpenStudy (welshfella):

an example of an outcome would be heads,5 but heads,2 would not be an outcome because the number must be odd

OpenStudy (welshfella):

the sample space is a list of all the possible valid outcomes

OpenStudy (anonymous):

do you know the answer

OpenStudy (anonymous):

@hotguy

OpenStudy (welshfella):

yes - but you should be able to work it out from the information I've given you. Check the 4 tables - its can;t be c or d for example because the numbers on the cubes are even. (2,4 and 6)

OpenStudy (anonymous):

i was thinking b

OpenStudy (anonymous):

@welshfella

OpenStudy (anonymous):

@TheSmartOne

OpenStudy (welshfella):

are all the numbers in table b odd?

OpenStudy (welshfella):

if any one is even then it cant be table b.

OpenStudy (anonymous):

nonono so its a???

OpenStudy (welshfella):

correct

OpenStudy (anonymous):

could you help me with this one :/

OpenStudy (anonymous):

A box has 8 beads of the same size, but all are different colors. Tamy draws a bead randomly from the box, notes its color, and then puts the bead back in the box. She repeats this 3 times. What is the probability that Tamy would pick a red bead on the first draw, then a white bead, and finally a red bead again? 1 over 4096 1 over 512 1 over 64 1 over 8

OpenStudy (welshfella):

the probability of picking a particular colour is 1/8 with repeated draws you multiply the probabilities so for 2 draws it would be 1/8 * 1/8

OpenStudy (anonymous):

wait so my answer is 1/8

OpenStudy (anonymous):

or no

OpenStudy (welshfella):

n0 - there are 3 draws so multiply 3 probabilities

OpenStudy (welshfella):

as i said for 2 draws its 1/8 times 1/8 so for 3 its ?

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