2. For the following frequency table find the mean by: (i) Direct Method (ii) Short-cut Method (iii) Step-deviation Method 100-120 120-140 140-160 160-180 180-200 200-220 220-240 2 10 Class: Frequency: 8 4 3 1

2. For the following frequency table find the mean by: (i) Direct Method (ii) Short-cut Method (iii) Step-deviation Method 100-120 120-140 140-160 160-180 180-200 200-220 220-240 2 10 Class: Frequency: 8 4 3 1

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 6CR

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Question

Use the proper method

2. For the following frequency table find the mean by:
(i) Direct Method (ii) Short-cut Method (iii) Step-deviation Method
100-120 120-140 140-160 160-180 180-200 200-220 220-240
2
Frequency: 10
Class:
8
4
3
1

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