In a Local Cellular Phone Area,company a Accounts for 60

question 94

Multiple Choice

In a local cellular phone area,company A accounts for 60% of the cellular phone market,while company B accounts for the remaining 40% of the market.Of the cellular calls made with company A,1% of the calls will have some sort of interference,while 2% of the cellular calls with company B will have interference.If a cellular call is selected at random,the probability that it will not have interference is

• A)0.014
• B)0.028
• C)0.14
• D)0.986

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Definitions:

Groundwater Flow

Groundwater flow describes the movement of underground water through the soil and rock layers, driven by gravitational forces and pressure differences.

Water Table

The level below the Earth's surface at which the ground is saturated with water.

Artesian

Groundwater that is in a confined aquifer and is under enough water pressure to rise above the level of the aquifer.

Water Table

The water table is the upper level of an underground surface in which the soil or rocks are permanently saturated with water, delineating the boundary between the aquifer's unsaturated zone and saturated zone.