What is an advantage of converting raw data to z-scores? a. It tells you large or small a measurement is compared to other measurements
b. They're more easy and convenient to record compared to raw data
c. It increases the convergent validity of your measurement
d. All of the above

One of the main advantages of using the z score is the fact that you can see and understand the relationship between the raw score and the distribution of scores much clearer. So, this means that it is possible to get an idea of how good or bad a score is relative to the entire group.

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