Find the value of x, the percentage of linen treads between the breaking strength of 25.0- 30.0 oz. (b) Construct a frequency distribution table that includes the (exclusive) class limits, class midpoint (m), frequency (f), mf and m2f. (c) Determine the mean, variance and standard deviation of breaking strength of linen treads.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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(a) Find the value of x, the percentage of linen treads between the breaking strength of 25.0-
30.0 oz.

(b) Construct a frequency distribution table that includes the (exclusive) class limits, class
midpoint (m), frequency (f), mf and m2f.

(c) Determine the mean, variance and standard deviation of breaking strength of linen
treads. 

The following data represent a sample of breaking strength of linen threads (in oz) and its
percentage, selected from a small factory. A total of 200 linen treads were selected for
observation in this study.
Table Q1: Breaking strength (in oz) linen treads and its percentage
Breaking Strength
Percentage (%) of
Linen Tread
15.0 – 20.0
20.0 – 25.0
12
25.0 – 30.0
30.0 - 35.0
27
35.0 – 40.0
21
40.0 – 45.0
11
45.0 – 50.0
7
Transcribed Image Text:The following data represent a sample of breaking strength of linen threads (in oz) and its percentage, selected from a small factory. A total of 200 linen treads were selected for observation in this study. Table Q1: Breaking strength (in oz) linen treads and its percentage Breaking Strength Percentage (%) of Linen Tread 15.0 – 20.0 20.0 – 25.0 12 25.0 – 30.0 30.0 - 35.0 27 35.0 – 40.0 21 40.0 – 45.0 11 45.0 – 50.0 7
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