Let the Random Variable Z Follow a Standard Normal Distribution

question 97

Multiple Choice

Let the random variable Z follow a standard normal distribution.Find P(-1.33 < Z < 0.78) .

• A)0.6905
• B)0.2823
• C)0.2177
• D)0.3095

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Definitions:

Mixture

A physical combination of two or more substances in which each substance retains its own chemical identity and properties.

Alloy

A substance made by melting two or more elements together, at least one of them a metal, resulting in a material with characteristics different from the individual components.

Metallic Elements

Elements that are good conductors of heat and electricity, have a shiny appearance, and are malleable and ductile.

Homogeneous Mixture

A mixture in which the composition is uniform throughout, such as solutions where the solute is completely dissolved in the solvent.