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Unformatted text preview: 3. CD] The ,insuranCe company sees that in the entire population of homeowners, the mean loss
from ﬁre is E= $900 and the standard deviation of the loss is o = $700. What is the
standard deviation of the average loss foﬂpolicies (rounded to four decimal places)?
(Note that losses on separate policies are independent.) ' P Undergraduates are asked to write a 300word essay. The number of non—word (N)
errors is a random variable that has the following distribution: —_
Probability The number of word (W) errors is a random variable that has the following distribution: .—
Probability Suppose the correlation between non—word errors and word errors is 0.5. What is the
standard deviation of the total number of errors (6N+w) (rounded to four decimal places )? HE Undergraduates are asked to write a 300word essay. The number of nonword (N)
errors is a random variable that has the following distribution: __
Probability The number of word (W) errors is a random variable that has the following distribution: __
Probability __ Suppose the correlation between non—word errors and word errors is 0.5. What is the
mean of [the total number of errors (uN+w) (rounded to four decimal places)? ...
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 Spring '08
 ABDUS,S.

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