Your pet tarantula, Spider, has a 0.12 probability of biting an acquaintance who comes into contact with him. Next week, you will be entertaining 40 friends (all of whom will come into contact with Spider). (a) How many guests should you expect Spider to bite? guests (b) At your last party, Spider bit 6 of your guests. Assuming that Spider bit the expected number of guests, how many guests did you have? ______guests
Your pet tarantula, Spider, has a 0.12 probability of biting an acquaintance who comes into contact with him. Next week, you will be entertaining 40 friends (all of whom will come into contact with Spider). (a) How many guests should you expect Spider to bite? guests (b) At your last party, Spider bit 6 of your guests. Assuming that Spider bit the expected number of guests, how many guests did you have? ______guests
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Your pet tarantula, Spider, has a 0.12 probability of biting an acquaintance who comes into contact with him. Next week, you will be entertaining 40 friends (all of whom will come into contact with Spider).
(a)
How many guests should you expect Spider to bite?
guests
(b)
At your last party, Spider bit 6 of your guests. Assuming that Spider bit the expected number of guests, how many guests did you have?
______guests
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