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What is the sum of the three missing values in the table below? > cf Class Intervals Frequency Class Mark

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Estimation

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Question

What is the sum of the three missing values in the table below?
> cf
Class Intervals
Frequency
Class Mark
<cf
1-5
21
6-10
7
15
11-15
13
14
16-20
21-25
18
18
11
3
23
21

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