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  • 04-07-2020
  • Mathematics
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The odds in favor of a spinner landing on blue is 2:7. What is the probability of a spinner NOT landing on blue?

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xxamari
xxamari xxamari
  • 04-07-2020

Answer:

7/9

Step-by-step explanation:

P(blue) = 2:7

This means there are 2 blue parts for every 7 nonblue parts. So 9 parts total! 2:7, then, should be thought of as 2/9.

P(not blue) = 1 - 2/9

                  = 7/9

Think about it: there must be a total probability of 1, so the probability of not getting blue must be 7/9.

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