Go to this link: http://www.shortlist.com/entertainment/books/actor-heights-versus-character-heights
In Excel (or by hand, in SPSS, as informed in your book, or by entering the numbers into this web page here: https://www.mathsisfun.com/data/standard-deviation-calculator.html , calculate the mean and standard deviation for the heights of the characters and the heights of the actors playing the characters (You should convert the heights into inches before adding them to make it easier. When a range is given, you can use the low end).
Make sure you work with all the character heights as one group, actor heights as another group. You will have two groups (characters and actors) that you will answer the following questions about:
What is the mean for each group (characters is one group; the actors that play them the other group)?
What is the standard deviation for each group?
Which group has more variance?
Do you think it is possible for two groups to have the same mean but different variance? For two groups to have different means but the same variance? Why?
Open a Word doc, answer the questions.