A Certain Weightlifter Is Prone to Back Injury

question 87

Short Answer

A certain weightlifter is prone to back injury.He finds that he has a 20% chance of hurting his back given he uses the proper form of bending at the hips and keeping his spine locked.The probability he hurts his back with bad form is 95%.The probability he uses proper form is 75%.What is the probability he hurts his back?

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Definitions:

Maximum Permitted

Refers to the highest allowable limit or level for a particular parameter, such as weight, speed, or capacity.

Runout

Any kind of wobble in a rotating component. Runout may be axial or radial. Using the example of a wheel on a vehicle, axial runout would be wobble as viewed from the front or rear of the vehicle, and radial runout would be wobble viewed from the side of the vehicle.

Tire Blow-Outs

Sudden failures of a tire due to excessive pressure, impact damage, or weakness in the tire structure, often leading to loss of vehicle control.