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If a fair coin will be flipped three times, what is the probability of flipping at least two heads in a row? Express your answer as a common fraction.

 May 12, 2020

Best Answer 

 #1
avatar+20906 
+2

List all the possibilities:

     H H H     *

     H H T     *

     H T H

     H T T      

     T H H     *

     T H T

     T T H

     T T T

3 out of the 8 possibilities will have at least 2 heads in a row.

So, the probability is 3/8.

 May 12, 2020
 #1
avatar+20906 
+2
Best Answer

List all the possibilities:

     H H H     *

     H H T     *

     H T H

     H T T      

     T H H     *

     T H T

     T T H

     T T T

3 out of the 8 possibilities will have at least 2 heads in a row.

So, the probability is 3/8.

geno3141 May 12, 2020

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