Posted by **Stranger** on Monday, March 18, 2013 at 5:23am.

25 independent, fair coins are tossed in a row. What is the expected number of consecutive HH pairs?

If 6 coin tosses in a row give HHTHHH, the number of consecutive HH pairs is 3.

- Combinations Maths -
**Ken**, Monday, March 18, 2013 at 7:14am
If you are going to answer other peoples questions you need to show them your work, just posting the final answer is no help. We try to show them how to get to the answer, and if we can we don't give the final answer, they learn better if they get to it themselves.

- Combinations Maths -
**Stranger**, Monday, March 18, 2013 at 7:31am
okk

- Combinations Maths -
**Ken**, Monday, March 18, 2013 at 7:31am
:) Thanks

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