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OpenStudy (anonymous):

help please!

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (anonymous):

please help me with math ! @dumbcow im going to fail if i dont finish! :(

OpenStudy (dumbcow):

what is the question? or what topic are you studying?

OpenStudy (anonymous):

OpenStudy (dumbcow):

absolute deviation is a measure of variance bigger deviation means higher variablility

OpenStudy (anonymous):

D?

OpenStudy (dumbcow):

yes

OpenStudy (anonymous):

ok i have more ... next!

OpenStudy (anonymous):

At a game booth, a student gets a box of candy as the prize for winning a game. The boxes come in four colors: white, red, green, and blue. There are 8 boxes of each color. All the boxes are equally likely to be given away as prizes. Which expression shows the probability of the first winner receiving a white box and the second winner also receiving a box of the same color? 8 over 32 multiplied by 8 over 31 8 over 32 plus 8 over 31 8 over 32 plus 7 over 31 8 over 32 multiplied by 7 over 31

OpenStudy (dumbcow):

for each winner the prob of getting a white box = (num of white boxes)/(total boxes) after first winner, there is 1 less box AND 1 less white box

OpenStudy (dumbcow):

also when finding probability of multiple independent events ..... multiply the probabilities answer must be either A or D

OpenStudy (anonymous):

ok so how do i solve the equation... whats the equation?

OpenStudy (dumbcow):

look at each winner and determine correct probability using (num of white boxes)/(total boxes)

OpenStudy (anonymous):

whats the number of white boxes?

OpenStudy (dumbcow):

originally its 8, then after first winner takes a white box, so now theres 7

OpenStudy (anonymous):

ok so its 7/8?

OpenStudy (anonymous):

??

OpenStudy (anonymous):

@dumbcow

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