A coin is flipped ten times in succession. In how many ways can at least nine...

Question

Question

A coin is flipped ten times in succession. In how many ways can at least nine heads occur?

Answer 1

Answer #1

Number of ways that at least nine heads occur are

They are 1) H,H,H,H,H,H,H,H,H,H

2) T,H,H,H,H,H,H,H,H,H

3) H,T,H,H,H,H,H,H,H,H

4) H,H,T,H,H,H,H,H,H,H

5) H,H,H,T,H,H,H,H,H,H

6) H,H,H,H,T,H,H,H,H,H

7) H,H,H,H,H,T,H,H,H,H

8) H,H,H,H,H,H,T,H,H,H

9) H,H,H,H,H,H,H,T,H,H

10) H,H,H,H,H,H,H,H,T,H

11) H,H,H,H,H,H,H,H,H,T

Answer 2

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