Question: 3. A set of test data for the load-carrying capacity of a member is shown in Table P2.2.
(a) Plot the test data on normal probability paper.
(b) Plot a normal distribution on the same probability paper. Use the sample mean and
standard deviation as estimates of the true mean and standard deviation.
(c) Plot a lognormal distribution on the same normal probability paper. Use the sample mean and standard deviation as estimates of the true mean and standard deviation.
(d) Plot the relative frequency and cumulative frequency histograms.

Table P2.2
Test data for load-carrying capacity of a member.
3.95 3.99 4.21 4.28 4.26 4.07 4.36
4.07 4.21 3.90 4.15 4.41 3.97
4.14 4.39 3.74 4.04 4.22 4.05
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