1. If approximately p percent of the observations have values less than the pth percentile, then approximately (100 p) percent of the observations have values greater than the pth percentile.

True or False

2. In a boxplot, if the median is in the center of the box and the left and right whiskers are equidistant from their respective quartiles, a symmetrical shape is implied.

True or False

3. In data sets that contain outliers, the arithmetic mean is used as the measure of the central location.

True or False

4. Converting observations into z-scores is also called doubling the observation.

True or False