The distribution of the number of errors that 10 students made on a typing test is shown.
Question:
The distribution of the number of errors that 10 students made on a typing test is shown.
Find each of these.
a. Mean
b. Modal class
c. Variance
d. Standard deviation
Transcribed Image Text:
Errors 0-2 3-5 6-8 9-11 12-14 Frequency 1 34 1 1
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Ans X Number of errors Midvalue of interval f Frequency Errors X f fX f...View the full answer
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Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9780077665807
9th Edition
Authors: Allan G. Bluman
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