Question

The thickness of a steel rod is unifornly distributed between 374 and 377 millimetres. Find
the mean and standard deviation of the thickness of a steel rod.
a) Mean=375.5. Standard deviation - 0.8660
b) Mean=375.5. Standard deviation = 2.4587
Mean=228,5. Standard deviation =0.8660
d) Mean=228.5, Standard deviation=2.4587​

Answer 1

Answer:

Stainless Steel Bar & Wire

Round Bar 3.0 to 304.8mm

Angle Bar 20 to 100mm section; 3.0mm to 12.0mm thickness

Flat bar 12 to 150mm wide; 3 to 25mm thickness