Identify the sampling designs that use convenience sampling. Check all that apply. Mr. Berkman asks all his third-period students about music preferences.
Each customer of a sandwich shop is interviewed about their customer satisfaction as they exit.
An online poll about voter opinion of political issues is posted on social media.
A student organization interviews students in a lunch line about cafeteria meals.
Fifteen percent of families in the county are randomly chosen to respond to a survey about emergency services.
The management employees of a company, which has locations throughout the country, are asked about job satisfaction.

id say it is the first one and last one

Step-by-step explanation:

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

english, cause i can’t you