Duestion: A contractor want to select a steel bars (diameter 16 mm) produced from two Eactories (A and B). The data below shows the results of tensile test; determine: 1. The mean and median. 2. Standard deviation and variance. Factory (A) Frequency (f) Factory (B) Frequency (f) Classes Classes 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 (A)
Factory (B)
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.
Classes
Frequency (f)
Classes
Frequency (f.)
275.5-300.5
1
275.5-300.5
1
300.5-325.5
2.
300.5-325.5
1
5. Draw Polygon and Ascending Ogive.
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
9.
400.5-425.5
425.5-450.5
4.
425.5-450.5
450.5-475.5
2
450.5-475.5
1
475.5-500.5
1
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 (A) Factory (B) 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. Classes Frequency (f) Classes Frequency (f.) 275.5-300.5 1 275.5-300.5 1 300.5-325.5 2. 300.5-325.5 1 5. Draw Polygon and Ascending Ogive. 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 9. 400.5-425.5 425.5-450.5 4. 425.5-450.5 450.5-475.5 2 450.5-475.5 1 475.5-500.5 1 475.5-500.5 1
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