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The dart board to the right has a red center circle (bull’s
eye) with area of 1π cm2
. Each ring surrounding this bull’s
eye has a width of 2 cm. Use this information to answer the
questions.
1) Given a random throw of a dart, what is the
probability that it will land in a white ring?
2) What is the probability of hitting a black ring?
3) What is the probability of a bull’s eye?
4) What is the probability that in 3 throws, all 3 land in
the black regions?
5) What is the probability that in 3 throws, one will land
in the bull’s eye?
6) How many darts must be thrown to have a 95%
chance of making a bull’s eye?
Sagot :
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