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Suppose the dial on the spinner is spun 2 times in a row.

X is the number of times the dial lands on region B.

Which table represents the probability distribution for the variable X?

 

jbouyer  Mar 8, 2018
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Prob  that the spinner lands on B  0 times  =  3/4 * 3/4   =  9/16

 

Prob that the spinner lands on  1 time  =  (1/4) (3/4) + (3/4)1/4)  =  6/16 = 3/8

 

Prob that the spinner lands on B 2 times  = (1/4) (1/4) =  1/16

 

The third answer

 

 

cool cool cool

CPhill  Mar 9, 2018

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