Chapter 2, Problem 2.158ACI

(a)

To determine

To summarize: The data set using graph.

To determine: The color and clarity that is most often occurs and least often occurs.

(b)

To determine

To describe: The carat distribution of 308 diamonds using graphical method.

(c)

To determine

To describe: The carat distribution of diamonds certified by GIA group using graphical method.

(d)

To determine

To describe: The carat distribution of diamonds certified by HRD and IDI groups using graphical method.

To determine

To compare: The three carat distributions from part c and d.

f.

To determine

The mean of the data set.

To interpret: The mean.

g.

To determine

The median of the data set.

To interpret: The median.

h.

To determine

The mode of the data set.

To interpret: The mode.

i.

To determine

The measure of central tendency that explains the data set well.

j.

To determine

To construct: The interval that explains 75% of the data.

k.

To determine

To construct: The scatter plot of the data.

To determine: The trend of the data points.