Demarco has a container with 48 quarters, 27 dimes, 12 nickels, and 38 pennies. He selects one coin at random.
What is the probability that the coin will be a quarter or a dime?
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OpenStudy (aa123):
hi
OpenStudy (aa123):
this is so easy
OpenStudy (aa123):
for a quarter is
OpenStudy (mathmale):
Several concepts come into play here: classical probability and joint probability.
First you need to calculate P(draw a quarter) and P(draw a dime).
Hint: How many coins, total, are in this container?
OpenStudy (anonymous):
125
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OpenStudy (aa123):
it is
OpenStudy (aa123):
for quarters
OpenStudy (aa123):
umm
OpenStudy (aa123):
count all the dime and quarter and nickels
OpenStudy (aa123):
ok
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OpenStudy (aa123):
you got to count all the quarters and your probility is 48/125 for quarters
OpenStudy (aa123):
did that help
OpenStudy (mathmale):
@aa123: This is marie's game, not yours. The fact that you have not rec'd a reply yet probably means that you have intimidated and/or overwhelmed her. Please STOP now.