4.6 Open the applet entitled Sample from a Population. On the pulldown menu to the right of the top graph, select Bell shaped. The box to the left of the top graph displays the population mean, median, and standard deviation.

a. Run the applet for each available value of n on the pulldown menu for the sample size. Go from the smallest to the largest value of n. For each value of n, observe the shape of the graph of the sample data and record the mean, median, and standard deviation of the sample.

b. Describe what happens to the shape of the graph and the mean, median, and standard deviation of the sample as the sample size increases.

Applying the Concepts—Basic