A normal distribution is best described as which?

A normal distribution is best described as which?

• A. Skewed distribution
• B. Uniform distribution
• C. Bimodal distribution
• D. Normal distribution

Answer: (D)

A normal distribution is a symmetrical, bell-shaped curve that has one peak and is centered around its mean. This means the mean, median, and mode all line up, and the data are most concentrated near the center with probabilities tapering off smoothly as you move away from the center. The spread is controlled by the standard deviation: a larger spread makes the curve wider and flatter, while a smaller spread makes it taller but still bell-shaped. It’s not skewed to one side, not flat across all values, and not composed of two peaks. Those features describe the other types, whereas the normal distribution matches a single, centered, bell-shaped rise and fall in probability.

A normal distribution is a symmetrical, bell-shaped curve that has one peak and is centered around its mean. This means the mean, median, and mode all line up, and the data are most concentrated near the center with probabilities tapering off smoothly as you move away from the center. The spread is controlled by the standard deviation: a larger spread makes the curve wider and flatter, while a smaller spread makes it taller but still bell-shaped. It’s not skewed to one side, not flat across all values, and not composed of two peaks. Those features describe the other types, whereas the normal distribution matches a single, centered, bell-shaped rise and fall in probability.