Consider the following cumulative frequency distribution:

a. Construct a frequency distribution. How many observations are at least 35 but less than 45?

b. Graph a frequency histogram.

c. What percent of the observations are less than 45? R-69

Transcribed Image Text:

Class Cumulative Frequency 15 up to 25 30 25 up to 35 50 35 up to 45 120 45 up to 55 130