A Certain Weightlifter Is Prone to Back Injury

question 95

Short Answer

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

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Definitions:

Primacy Effect

A cognitive phenomenon where the first items presented in a series are more likely to be remembered than items presented later on.

First Impressions

First Impressions are the initial thoughts and judgments one forms about another person or situation, often based on limited information but impactful on subsequent perceptions.

Memory

The faculty by which the mind stores and remembers information, critical for learning and the continuity of personal identity.

Flashbulb Memory

A vivid and detailed memory of a significant moment.