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.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

answer:

125 yards

explanation:

75+50=125. that is my answer

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: