Mikayla designed a survey to determine the number of people expected at opening night of a community theater. the community has about 5,000 members. she selected a sample of the first 25 parents dropping off actors during theater rehearsal. which best explains mikayla’s sample?

random and biased
random and unbiased
nonrandom and biased
nonrandom and unbiased

Third option is correct.

Step-by-step explanation:

Since we have given that

Mikayla designed a survey to determine the number of poeple expected at opening night of a community theatre .

Strength of the community = 5000

She will selected a sample of first 25 parents dropping off actors during theatre rehearsal.

Since she will only consider first 25 parents so it will non random .

and she will only consider those parents who are dropping off actors during theatre rehearsal.

So, she is biased about them.

So, Mikayla's sample is non-random and biased.

Hence, Third option is correct.

C

Step-by-step explanation:

Nonrandom and biased

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

the correct answer is $7.38

step-by-step explanation: