In a sample of 800 U. S. adults, 200 think that most celebrities are good role models. Two U. S. adults are selected at random from the population of all U. S. adults without replacement. Assuming the sample is representative of all U. S.adults, complete parts (a) through (c).

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13