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s2008m [1.1K]
3 years ago
14

A spider must eat 3 flies a day to survive. After he has taken his three he quits for the day. For any fly that crosses his path

, he has a 50% chance of nabbing that fly. Given that five flies have sailed past the spider today (some surviving and some not), find the chance of survival of next fly.
Mathematics
1 answer:
attashe74 [19]3 years ago
7 0
The answer is 0.75.
(1/2)*1 + (1/2)*0.5 = 0.75
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