Use the estimated coefficients that you found in parts a. through d. to identify the correct statements regarding mean robbery rates in southern vs. non-southern states. you do not need to take statistical significance into consideration here. select all that apply. a. the average crime rate for southern states was greater than the average crime rate for non-southern states. b. the average crime rate for southern states was less than the average crime rate for non-southern states. c. the average crime rate for southern states was greater than the average crime rate for non-southern states, when controlling for number of males per 1000 females. d. the average crime rate for southern states was less than the average crime rate for non-southern states, when controlling for number of males per 1000 females. e. the average crime rate for southern states was greater than the average crime rate for non-southern states, when controlling for 1960 per capita expenditure on police by state and local government. f. the average crime rate for southern states was less than the average crime rate for non-southern states, when controlling for 1960 per capita expenditure on police by state and local government. g. the average crime rate for southern states was greater than the average crime rate for non-southern states, when controlling for both males per 1000 females and 1960 per capita expenditure on police by state and local government. h. the average crime rate for southern states was less than the average crime rate for non-southern states, when controlling for both males per 1000 females and 1960 per capita expenditure on police by state and local government.

the mean and mad

step-by-step explanation:

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step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!