a. Construct a grouped frequency distribution and a cumulative frequency distribution with 6 classes.
Note: give a brief explanation by specifying the covered steps.
Grouped Frequency Distribution
Step 1. Find Range
Step 2. Compute classes’ width
Step 3. Create class boundaries
Step 4. Tally the data and find the numerical frequencies from the tally
Cumulative Frequency Distribution
Step 1. Find Range
Step 2. Compute classes’ width
Step 3. Find the frequencies and the corresponding percentage
b. Use Excel to construct a Histogram. (Tools Data Analysis Histogram for input range select the given values, for the bin range select the classes upper boundaries values check Chart Output).
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Expert's answer
2012-02-16T07:36:05-0500
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