PEC EPE Civil Practice Questions - PEC Engineering Practice Examination - Civil Engineering & Allied Disciplines (Part-II) Exam

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A sample of five concrete cylinder strengths (MPa) is 22, 24, 26, 28, 30. What is the sample standard deviation (n−1 denominator)?

2.83 MPa 3.16 MPa 4.00 MPa 2.45 MPa

Correct Answer:

3.16 MPa

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