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Mathematics 17 Online
OpenStudy (anonymous):

About .5% of the items produced in a company are defective. Out of 1,200 items, how many would you predict are defective?

OpenStudy (blank ):

1200 * 0.005 = 6 items that are defective out of 1,200

OpenStudy (anonymous):

Thank you!!!!

OpenStudy (blank ):

ǝɯoɔlǝʍ ǝɹ,noʎ :)

OpenStudy (anonymous):

I have another stumper for you... A bag contains 4 black marbles, 5 red marbles, and 1 blue marble. What is the probability of drawing a red marble or a blue marble from the bag?

OpenStudy (blank ):

6 / 10

OpenStudy (anonymous):

How did you figure that?

OpenStudy (blank ):

5 red + 1 blue = 6 marbles 5 + 1 + 4 = 10 marbles in all 6 wanted out of 10 possible outcomes 6/10

OpenStudy (anonymous):

once again, THANK YOU!!!!

OpenStudy (blank ):

ǝɯoɔlǝʍ ǝɹ,noʎ :)

OpenStudy (anonymous):

Are you in 6th grade like me?

OpenStudy (anonymous):

Wow! No wonder you are good at this! Do you tutor? I live in California.

OpenStudy (anonymous):

Oh. Too bad. Thanks again for the help.

OpenStudy (anonymous):

still there ?

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