Let Z Be a Normal Random Variable with Mean 0

question 87

Multiple Choice

Let z be a normal random variable with mean 0 and standard deviation 1.The 75^th percentile of z is ____________.

• A) 0.6700
• B) -1.254
• C) 0.0000
• D) 1.2800
• E) 0.5000

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Definitions:

pH

A scale used to specify the acidity or alkalinity of an aqueous solution, with values ranging from 0 (very acidic) to 14 (very basic).

Capillary Action

Capillary action is the ability of a liquid to flow through narrow spaces without the assistance of, or even in opposition to, external forces like gravity, observed in phenomena such as water moving up a plant stem.

Adhesion

Adhesion refers to the process by which cells or substances stick to each other or to surfaces, playing a crucial role in many biological functions and processes.

Cohesion

The phenomenon where similar molecules are drawn to each other, resulting in them sticking together due to their mutual attraction.