3. Describing Data Numerically

Given forecast errors of $-1$, $4$, $8$, and $-3$, what is the mean absolute deviation?

Which of the following best describes the $\mathrm{mean}$ in a data set?

You read $105$ pages of a novel over $7$ days. What is the mean number of pages you read each day?

Given a sample with a sample mean of $\overline{x}$ and a sample standard deviation of $s$, which of the following best describes the sample mean?

Which of the following is a good point estimator for the population mean?

Find the mean of the sample data below.