<PRE><B>Question 137181</B>
The probability that San Francisco plays in the next Superbowl is nine times the probability that they do not play in the next superbowl.
P(they play) = 9x ;  P(they do not play) = x
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The probability that San Francisco plays in the next Superbowl plus the probability they do  not play is 1.
9x+x = 1
10x = 1
x = 0.1 (prob. they do not play)
9x = 0.9 (prob. they play)
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What is the probability that San Francisco plays in the next Superbowl?
P(they play) = 0.9
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Cheers,
Stan H.
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