Estimate the mean and the standard deviation of the following frequency distribution. Class Frequency 20 up to
Question:
Class Frequency
20 up to 30...... 7
30 up to 40...... 12
40 up to 50...... 21
50 up to 60...... 18
60 up to 70...... 12
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Related Book For
Statistical Techniques In Business And Economics
ISBN: 356
16th Edition
Authors: Douglas Lind, William Marchal
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