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What is the theoretical probability of picking a fruit-flavored bean and not picking a...

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anya4one | Student, Undergraduate | (Level 2) Honors

Posted October 2, 2013 at 4:54 PM via web

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What is the theoretical probability of picking a fruit-flavored bean and not picking a cinnamon bean if there are 20 red, cinnamon-flavored beans; 25 yellow, lemon-flavored beans; 15 green, mint-flavored beans; 30 purple, grape-flavored beans; and 10 white, pineapple-flavored beans in a bag of 100 jelly beans.

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aruv | High School Teacher | (Level 2) Valedictorian

Posted October 2, 2013 at 6:01 PM (Answer #1)

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Let

F= Fruits =65

C= Cinnamon=20

`FnnbarC=` Fruits and not cinnamon

`FnnC=` Fruits and cinnamon= 15 mint

`P(F)=P(FnnbarC)+P(FnnC)`

`65/100=P(FnnbarC)+15/100`

`P(FnnbarC)=65/100-15/100=50/100=1/2`

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