Question
1
5 out of 5 points
Find the probability of the event.
The probability that a radish seed will germinate is .7. The gardener
plants 20 seeds and she harvests 16 radishes.
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Question 2
5 out of 5 points
Find the expected value of the random variable in the
experiment.
Five rats are inoculated against a disease. The number contracting
the disease is noted and the experiment is repeated 20 times. Find
the probability distribution and give the expected number of rats
contracting the disease.
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Question 3
5 out of 5 points
Prepare a probability distribution for the experiment. Let x
represent the random variable, and let P represent the
probability.
Four coins are tossed and the number of heads is counted.
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Question 4
5 out of 5 points
Find the expected value for the random variable.
A business bureau gets complaints as shown in the following
table. Find the expected number of complaints per day.
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 Spring '08
 WRIGHT
 Probability theory, probability density function, insurance company, Olivia

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