Find the Value of a Normal Random Variable

question 90

Multiple Choice

Find the Value of a Normal Random Variable
-The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2900 miles. What warranty should the company use if they want 96% of the tires to outlast the warranty

• A) 54,925 mi
• B) 65,075 mi
• C) 57,100 mi
• D) 62,900 mi

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Definitions:

Electroconvulsive Therapy

A therapeutic approach in psychiatry that involves inducing seizures in patients through electric shocks to alleviate symptoms of mental illnesses.

Therapeutic Lifestyle Change

Lifestyle modifications aimed at improving health outcomes, including stress reduction, healthy eating, and regular physical activity, reiterated with a new emphasis.

Drug Therapies

Treatment of disease or disorders with pharmaceutical drugs as opposed to surgery or other therapies.

Brain Stimulation

The application of electrical or magnetic stimulation to specific brain areas to treat neurological and psychiatric disorders or to study brain function.