The distribution of the number of errors that 10 students made on a typing test is shown.

Question:

Find each of these.
a. Mean

b. Modal class

c. Variance

d. Standard deviation

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Elementary Statistics A Step By Step Approach

ISBN: 9780077665807

9th Edition

Authors: Allan G. Bluman

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Question Posted: Jul 25, 2022 07:50 AM

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The distribution of the number of errors that 10 students made on a typing test is shown.

Question:

Errors 0-2 3-5 6-8 9-11 12-14 Frequency 1 34 1 1

Step by Step Answer:

Ans X Number of errors Midvalue of interval f Frequency Errors X f fX f...View the full answer

Elementary Statistics A Step By Step Approach

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