Math 109 Extra Practices for Quiz 3
1. The following data represent the total number of years of formal education for 40
employees of a bank.
(1) Create a table that shows frequency, relative frequency, and cumulative
frequency for the number of years of education.
(2) Find the mean, median, and mode respectively.
2. A medical research team studied the ages of patients who had strokes caused by
stress. The results of 34 patients are tabulated below. Use the frequency table to
construct the corresponding histogram.
3. Construct a bar graph for the relative frequencies
given.
4. Construct a line chart for the data below:
5. The students in Ms.Yang’s math class took the Scholastic Aptitude Test. Their math
scores are shown below.
601 632 641 571 352 640 636 670 582
a. Find the mean, median, and mode of these weights.
b. Which, if any, of these weights would you consider to be an outlier?
c. What are the mean, median, and mode weights if the outlier is excluded?