Assume that annual household income in Maryland follows a normal distri­bution with a median of $75,847 and standard deviation of $33,800.a. What is the probability that a household in Maryland has an annual income of $100,000 or more?b. What is the probability that a household in Maryland has an annual income of $40,000 or less?c. What is the probability that a household in Maryland has an annual income between $50,000 and $70,000?d. What is the annual income of a household in the 90th percentile of annual house­hold income in Maryland?

i think it is c, not positive though

step-by-step explanation:

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.

4x and 6y

im not sure though

d is the correct answer

step-by-step explanation:

x= 8 because 3x = 3 * 8, and 3*8 = 24