An American Household Is Chosen at Random and Asked How

question 19

Multiple Choice

An American household is chosen at random and asked how many tablet computers it owns. Here are the probabilities as determined by a recent survey:

What is the expected number of tablet computers per household?

• A) 1
• B) 1.44
• C) 1.5
• D) 1.54
• E) 2

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Definitions:

Glacier

A large, slow-moving mass of ice, formed from compacted layers of snow, that flows over land.

Terminal Moraine

A mound or ridge of debris deposited at the end of a glacier, marking its furthest advance.

Glacier

A large, slow-moving river of ice, formed from compacted layers of snow, that shapes the landscape through its movement and melting.

U-Shaped Valley

A type of valley formed by the erosive action of glaciers, characterized by its U-shaped cross-section.