In a normal curve,the proportion of the area under the curve between two scores represents
A)the cumulative frequency of the lower score.
B)the cumulative relative frequency of the lower score.
C)the relative frequency of all scores between the two scores.
D)the relative frequency of all scores below the upper score.

Question

Quizplus · Accepted Answer

The proportion of the area under the curve between two scores represents the relative frequency of all scores between the two scores. This is because in a normal distribution, the area under the curve represents the probability of observations falling within a certain range of scores. Therefore, the proportion of the area between two scores is the probability of observations falling between those two scores, which is equivalent to the relative frequency of all scores between those two scores.

In a Normal Curve,the Proportion of the Area Under the Curve