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Gordon-Holliday Pre-calculus, p. 794

PT: Bernoulli trials, Binomial Setting, Independent Events

RW: Cooking

In cooking class, 1 out of 5 souffles that Sabrina makes will collapse.  She is preparing 6 souffles to serve at a party for her parents.  What is the probability that exactly 4 of them do not collapse?  What is the probability that exactly 4 collapse?

Gordon-Holliday Pre-calculus, p. 794

PT: Bernoulli trials, Binomial Setting, Independent Events

RW: Skeet Shooting

Skeet shooting involves shooting at discs, called clay pigeons, propelled into the air by a machine.  Heather usually hits 9 out of 10 clay pigeons.  If she shoots 12 times, find the following probabilities:

a)      P(all misses)

b)      P(exactly 7 hits)

c)      P(all hits)

d)      P(at least 10 hits)

Gordon-Holliday Pre-calculus, p. 794

PT: Bernoulli trials, Binomial Setting, Independent Events

RW: Stocks

A stockbroker is researching 13 independent stocks.  An investment in each stock will either make money or lose money.  The probability that each stock will make money is 5/8.  What is the probability that exactly 10 of the stocks make money?  Explain your reasoning.

Gerver Algebra 2, 123-124

PT: Binomial Distribution, Bernoulli trials, Independent Events

RW: Quality Control

On an assembly line of Acme Radio, the probability that a radio is defective is 1/15.  If an inspector randomly checks 10 items, what is the probability of finding:

a)      exactly 2 defective

b)      no more than 2 defective

c)      at least 3 defective

Key to Problem Bank: