Anationwide telephone survey used random digit dialing (one kind of telephone survey).out of 1507 respondents, 3% said they had been homeless at some point in the last five years. is there selection bias in this 3% estimate? which way does the bias go?

Answer

The answer and procedures of the exercise are attached in the following archives.

Step-by-step explanation:

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  

answer: i think it is (1,-2)

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3