Ineed the answer !
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%

  D.  37.22%

Step-by-step explanation:

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

___

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

$2,703.06

step-by-step explanation:

add: $2,687.44+ $2,613.09+$2,808.64= $8,109.17

divide by 3 because you added 3 numbers.

$8,109.17/3=

answer: $2,703.06

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.