Between two negative z scores there must always be
A) fewer than 50% of the cases
B) more than 50% of the cases
C) exactly 50% of the cases
D) none of these, since 0% must always fall between negative z scores

Question

Quizplus · Accepted Answer

Between two negative z scores on a normal distribution curve, there will always be fewer than 50% of the cases because the mean (which splits the distribution into two equal halves of 50% each) is at z=0, and any segment entirely within the negative side will necessarily cover less than half of the data.

Between Two Negative Z Scores There Must Always Be