Question

I need the answer ASAP!!!
A study of homeowners in the 5th congressional district in Maryland found that their annual
household incomes are normally distributed with a mean of $41,182 and a standard deviation of $11,990
(based on data from Nielsen Media Research).


What percentage of household incomes are between $25,000 and $40,000?

A. 53.93%
B. 62.5%
C. 28.23%
D. 37.22%

Answer 1

Answer:

  D.  37.22%

Step-by-step explanation:

One of my favorite probability z-table websites calculates the fraction as 0.3722 = 37.22%.

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Your graphing calculator or spreadsheet can probably do the same for you.