Question

Which statement is true of normally distributed data ??

Answer 1

Answer:

The correct option is b. approximately 68% of the data falls within 1 standard deviation (+-1) of the mean

Explanation:

According to the empirical rule of normal distribution:

1. Approximately 68% of the data falls within 1 standard deviation $\pm 1$ of the mean

2. Approximately 95% of the data falls within 2 standard deviations $\pm 2$ of the mean

3. Approximately 99.7% of the data falls within 3 standard deviations $\pm 3$ of the mean.

Therefore, among the given options, only option b adheres to the empirical rule of the normal distribution. Therefore, the option b is correct