Need math help with the probability of an event

label Mathematics
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A box is filled with 2 yellow cards, 5 red cards, and 8 brown cards. A card is chosen at random from the box. What is the probability that the card is not red ?

write your answer as a fraction in simplest form

Nov 25th, 2015

Thank you for the opportunity to help you with your question!

yellow=2

red=5

brown=8

total cards=5+2+8=15

the probability of card is red=5/15=1/3

so the probability the card is not red=1-the probability of card is red

=1-1/3

=2/3

so the answer is 2/3

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 25th, 2015

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Nov 25th, 2015
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Nov 25th, 2015
Sep 20th, 2017
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