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A spinner has four sectors of equal size. The sectors are labelled 1, 2, 3, and 4. The spinner is spun twice. X is the number of times a 1 is spun. Create a probability distribution table for X= 0, 1, 2.

 Jun 11, 2019
 #1
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Note that the possible outcomes are

(1,1)    (2,3)   (3,3)  (4,4)

(1,1)    (3,2)   (3,3)  (4,4)

(1,2)    (2,4)   (3,4) 

(2,1)    (4,2)   (4,3)

(1,3)    (2,2)

(3,1)    (2,2)

(1,4)

(4,1)

 

Number of 1's           Probability

0                                  12/20 =  .60

1                                    6/20  = .30

2                                    2/20 =  .10

 

 

 

cool cool cool                                                   

 Jun 11, 2019

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