If X Is a Normal Random Variable with a Standard

question 67

Multiple Choice

If X is a normal random variable with a standard deviation of 10,then 3X has a standard deviation equal to

• A)10.
• B)13.
• C)30.
• D)90.

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Definitions:

Glaciers

Large masses of ice that form on land by the compaction and recrystallization of snow, moving slowly over time.

Sea Level

The general level of the ocean's surface, used as a baseline for measuring elevation or depth on Earth.

Sea Cave

A type of cave formed primarily by the wave action of the sea, often found along coastlines.

Sea Stack

An isolated, pillar-like, rocky island or pinnacle near a rocky coastline.