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A 12 sided die is rolled. Event A is {1, 5, 7} and event B is {5, 9, 11, 12}. What is P(A or B)?

 

Question 3 options:

 

A. 1/12

B. 6/12

C. 4/12

D. 7/12

 Apr 18, 2019
 #1
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+2

P ( A or B)  = P(A) + P(B)  - P(A and B)  =  3/12  +  4/12   -  1/12    =  6 / 12

 

 

cool cool cool

 Apr 18, 2019

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