Question: A contractor want to select a steel bars (diameter 16 mm) produced from two factories (A and B). The data below shows the results of tensile test; determine: 1. The mean and median. 2. Standard deviation and variance. 3. Find the percent of steel (325.5

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Question: A contractor want to select a steel bars (diameter 16 mm) produced from two
factories (A and B). The data below shows the results of tensile test; determine:
Factory (B)
Frequency (f.)
1. The mean and median.
2. Standard deviation and variance.
3. Find the percent of steel (325.5<X<425.5).
4. Select the better line.
5. Draw Polygon and Ascending Ogive.
Factory (A)
Classes
Frequency (f)
Classes
275.5-300.5
1
275.5-300.5
300.5-325.5
1
2
300.5-325.5
1
325.5-350.5
4.
325.5-350.5
1
350.5-375.5
6.
350.5-375.5
375.5-400.5
7
375.5-400.5
13
400.5-425.5
6.
400.5-425.5
7.
425.5-450.5
4
425.5-450.5
1
450.5-475.5
450.5-475.5
1
475.5-500.5
475.5-500.5
1
Transcribed Image Text:Question: A contractor want to select a steel bars (diameter 16 mm) produced from two factories (A and B). The data below shows the results of tensile test; determine: Factory (B) Frequency (f.) 1. The mean and median. 2. Standard deviation and variance. 3. Find the percent of steel (325.5<X<425.5). 4. Select the better line. 5. Draw Polygon and Ascending Ogive. Factory (A) Classes Frequency (f) Classes 275.5-300.5 1 275.5-300.5 300.5-325.5 1 2 300.5-325.5 1 325.5-350.5 4. 325.5-350.5 1 350.5-375.5 6. 350.5-375.5 375.5-400.5 7 375.5-400.5 13 400.5-425.5 6. 400.5-425.5 7. 425.5-450.5 4 425.5-450.5 1 450.5-475.5 450.5-475.5 1 475.5-500.5 475.5-500.5 1
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