Which of the following is a benefit to using a random sample for an observational study? A. The random sample allows for different treatments to be assigned.
B. A causal relationship can be determined.
C. The results of the observational study can be generalized to the population.
D. A random sample is the easiest method of data collection.
E. The distribution of the sample will match the distribution of the population.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

the answer is c.

step-by-step explanation:

m

step-by-step explanation:

the answer to question 1 is -8, 28.

step-by-step explanation: