Q. 30
Question
30. Hair and Eye Color. In the article "Graphical Display of Two Way Contingency Tables" (The American Statistician, Vol. 28, No. 1 . pp. 9-12), R. Snee presented data on hair color and eye color among 592 students in an elementary statistics course at the University of Delaware. Raw data for that information are presented on the WeissStats site. Use the technology of your choice to do the following tasks, and interpret your results.
a. Obtain both a frequency distribution and a relative-frequency distribution for the hair-color data.
b. Get a pie chart of the hair-color data.
c. Determine a bar chant of the hair-color data.
d. Repeat parts (a) - (c) for the eye-color data.
Step-by-Step Solution
Verified(a) A a frequency distribution and a relative-frequency distribution as:
(b) A pie chart of the hair-color data as:
(c) A bar chant of the hair-color data as:
(d) Obtained table, bar chart and pie chart for parts (a) - (c) for the eye-color data.
To obtain both a frequency distribution and a relative-frequency distribution for the hair-color data.
The number of data values that fall into a class is known as frequency.
The frequency is divided by the overall frequency to get the relative frequency. A frequency distribution and a relative-frequency distribution as:
To get a pie chart of the hair-color data.
A pie chart of the hair-color data as follows:
To determine a bar chant of the hair-color data.
The number of data values that fall into a class is known as frequency.
A bar chant of the hair-color data as follows:
To repeat parts (a) - (c) for the eye-color data.
The frequency indicates how many times the value appears in the data set. The frequency is divided by the overall frequency to get the relative frequency.
Each category is represented by a slice in the pie chart.
The number of data values that fall into a class is known as frequency.
A bar chant of the hair-color data as follows: