-3. If a given score is at the 30th percentile for reference group A and the 60th percentile for reference group B, which of the following is most likely true?
A. Individuals in reference group B generally performed better on the test than
those in group A.
B. A person at the 15th percentile with group A will be at the 30th percentile
with group B.
C. A person at the 80th percentile with reference group B will be at the 50th
percentile with group A.
D. Individuals in reference group B generally scored lower on the test than
those in reference group A.
E. None of the above.
30​

2

step-by-step explanation:

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all

it's d

step-by-step explanation: