Quantitative Literacy Practice Exam 2025 – Comprehensive Preparation Guide

Question: 1 / 400

Which of the following statements about normal distributions is true?

They are always skewed to the right

They have one peak

Normal distributions are characterized by a bell-shaped curve that is symmetric about the mean. This means that there is one peak at the center of the distribution, which corresponds to the mean, median, and mode of the data. The single peak reflects the concentration of data points around the average value, which is a defining feature of a normal distribution.

The other statements do not accurately describe normal distributions: they are not skewed to the right; they can have an odd or even number of data points; and they are not uniform, as uniform distributions have an equal probability for all outcomes, while normal distributions show varying probabilities that taper off from the peak towards the tails. Thus, recognizing that a normal distribution has one peak is crucial to understanding its fundamental characteristics.

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They require an even number of data points

They are always uniform

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