Question

1. what does the standard deviation measure in a normal distribution?

a. the average value of the dataset
b. the total sum of all data points
c. the middle value of the dataset
d. the spread of the dataset around the mean

Explanation:

Standard deviation is a measure of the amount of variation or dispersion of a set of values. In a normal distribution, it specifically measures how spread out the data points are around the mean. The average value of the dataset is measured by the mean. The total sum of all data points is just the sum of the values. The middle value of the dataset is the median.

Answer:

d. The spread of the dataset around the mean