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4.2.2 Statistical distributions (A-level only)

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Question 14

The length of a certain type of steel rod follows a normal distribution with a mean of 2.50 m and a standard deviation of 0.04 m.

Find the probability that the length of a steel rod is:

a.

More than 2.56 m

[1]
b.

Less than 2.44 m

[1]
c.

Between 2.44 m and 2.56 m

[1]

4.2.2 Statistical distributions (A-level only) Questions

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