A review of the records at Lander Community College revealed the following ethni

Question

A review of the records at Lander Community College revealed the following ethnic breakdown of the student population:

Caucasian                   1150

Black                           520

Hispanic                     255

Asian                               80

Native American            60

Other                              20

a)What is the probability that a randomly selected student is either

Caucasian or Black?

b)What is the probability that the selected student is not a member of either

of the two largest categories?

Explanation / Answer

a)

From the table,

P(C U B) = (1150+520)/2085 = 0.800959233 [ANSWER]

*********************

b)

Hence,

P(C U B)' = 1 - P(C U B) = 1 - 0.800959233 = 0.199040767 [ANSWER]

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