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.

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

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the cost function, c(x), is the total cost of manufacturing x units of the product. how many units must the company produce and sell if they wish to make a b. if the company produces and sells 2000 units, would they obtain a profit or loss?

the answer is a, biohazard symbol