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  3. a) assume that 12 jurors are randomly selected fro

A) Assume that 12 jurors are randomly selected from a population in which 87% of the...

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Basic Math

A) Assume that 12 jurors are randomly selected from a populationin which 87% of the people are Mexican-Americans. Refer to theprobability distribution table below and find the indicatedprobabilities.

xxP(x)P(x)
00+
10+
20+
30+
40+
50.0002
60.0019
70.0111
80.0464
90.138
100.2771
110.3372
120.188



Find the probability of exactly 5 Mexican-Americans among 12jurors.
P(x=5)=P(x=5)=

Find the probability of 5 or fewer Mexican-Americans among 12jurors.
P(x?5)=P(x?5)=

Does 5 Mexican-Americans among 12 jurors suggest that the selectionprocess discriminates against Mexican-Americans?

yes?

no?

B) A company prices its tornado insurance using the followingassumptions:
• In any calendar year, there can be at most one tornado.
• In any calendar year, the probability of a tornado is 0.12.
• The number of tornadoes in any calendar year is independent ofthe number of tornados in any other calendar year.
Using the company's assumptions, calculate the probability thatthere are fewer than 4 tornadoes in a 14-year period.

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