Find the Indicated Probability $\frac { 4 } { 13 }$

question 136

Multiple Choice

Find the indicated probability.
-A bag contains 8 red marbles, 4 blue marbles, and 1 green marble. Find P(not blue) .

• A) 9
• B) \(\frac { 4 } { 13 }\)
• C) \(\frac { 13 } { 9 }\)
• D) \(\frac { 9 } { 13 }\)

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Definitions:

Incising

Incising is the process by which a river or stream cuts down into its bed, deepening the channel through the erosion of sediment and rock.

Delta

A landform created by the deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water.

River Terraces

Flat, bench-like surfaces adjacent to the course of a river, which indicate previous river levels and can be used to reconstruct past environmental changes.

River Terraces

Stepped, flat surfaces alongside river valleys that represent previous levels of the river bed, formed by river erosion and changes in water level.