Question

The monthly income of residents of Daisy City is normally distributed with a mean of $2790 and a standard deviation of $458. a. Define the random variable in words. b. The mayor of Daisy City makes $2,250 a month. What percentage of Daisy City's residents has incomes that are more than the mayor's? c. Individuals with incomes of less than $1,985 per month are exempt from city taxes. What percentage of residents is exempt from city taxes? d. Two hundred residents have incomes of at least $4,440 per month. What is the population of Daisy City?

          The monthly income of residents of Daisy City is normally
distributed with a mean of $2790 and a standard deviation of
$458.
a.            Define
the random variable in words.
b.            The
mayor of Daisy City makes $2,250 a month. What percentage of Daisy
City's residents has incomes that are more than the mayor's?
c.            Individuals
with incomes of less than $1,985 per month are exempt from city
taxes. What percentage of residents is exempt from city taxes?
d.            Two
hundred residents have incomes of at least $4,440 per month. What
is the population of Daisy City?

Added by Alexis B.

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