Posted by **Victor** on Tuesday, October 18, 2011 at 11:45pm.

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 121.2-cm and a standard deviation of 1.8-cm.

Suppose a rod is chosen at random from all the rods produced by the company. There is a 23% probability that the rod is longer than:

Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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