The quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to solve. The data set has 200 observations and has mean 20 and standard deviation 4....

The quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to solve.

The data set has 200 observations and has mean 20 and standard deviation 4. Approximately how many observations lie between 16 and 24?