A recent survey determine the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distribution table summarizes the results.
Identify the class width for the given relative frequency distribution.
IQ Score----Relative Frequency
50-69--------5%
70-89--------23%
90-109------46%
110-129-----19%
130-149-----7%
a. 19
b. 20
c. 19.5
1 answer
https://www.google.com/search?client=safari&rls=en&q=class+width+frequency+distribution+calculator&ie=UTF-8&oe=UTF-8
2 answers