1
Frequency Distributions
1. Fill out the rest of this simple distribution table by calculating the relative frequency,
cumulative frequency, and cumulative percent. Round final answers to the 2nd decimal
place.
X f rf cf c%
10 5 .08 60 100%
9 0 .00 55 92%
8 10 .17 55 92%
7 20 .33 45 75%
6 25 .42 25 42%
N = 60
2. Using the data set given below. Create a simple distribution table by calculating the
relative frequency, cumulative frequency, and cumulative percent. Round final answers
to the 2nd decimal place.
X f rf cf c%
5 2 .17 12 100%
4 4 .33 10 83%
3 3 .25 6 50%
2 0 .00 3 25%
1 3 .25 3 25%
3. A police radar unit measured the speed of 25 cars on Elm Street. The resulting speeds
were: 29, 23, 30, 30, 27, 24, 30, 25, 23, 28, 25, 24, 28, 30, 23, 30, 27, 25, 29, 24, 23, 26,
30, 28, and 25.
a. Create a simple distribution table by calculating the relative frequency,
cumulative frequency, and cumulative percent. Round final answers to the 2nd
decimal place.
b. Draw a histogram to represent these data.
