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During a war between country A and country B, the troops of country A fire B1 and B2 bombs, country B is divided into 20 states, throughout the war the bombs have hit 14 regions with a total of 500 bombs B1 and B2. a) If I select a state at random, find the probability that it has been hit by at least one bomb. b) If I select a state at random, calculate the probability that it has not been hit by any bomb. C) How many regions can be hit twice?

During a war between country A and country B, the troops of country A fire B1 and B2 bombs, country B is divided into 20 states, throughout the war the bombs have hit 14 regions with a total of 500 bombs B1 and B2. a) If I select a state at random, find the probability that it has been hit by at least one bomb. b) If I select a state at random, calculate the probability that it has not been hit by any bomb. C) How many regions can be hit twice?

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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During a war between country A and country B, the troops of country A fire B1 and B2 bombs, country B is divided into 20 states, throughout the war the bombs have hit 14 regions with a total of 500 bombs B1 and B2. a) If I select a state at random, find the probability that it has been hit by at least one bomb. b) If I select a state at random, calculate the probability that it has not been hit by any bomb. C) How many regions can be hit twice?
Transcribed Image Text:During a war between country A and country B, the troops of country A fire B1 and B2 bombs, country B is divided into 20 states, throughout the war the bombs have hit 14 regions with a total of 500 bombs B1 and B2. a) If I select a state at random, find the probability that it has been hit by at least one bomb. b) If I select a state at random, calculate the probability that it has not been hit by any bomb. C) How many regions can be hit twice?
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