Posted by **victoria** on Monday, February 20, 2012 at 2:44pm.

Assume that the coin is flipped 10 times.

What is the probability that both heads and tails occur?

- math -
**Jake**, Monday, February 20, 2012 at 4:25pm
If you flip 2 coins then 25% chance

- math -
**Steve**, Monday, February 20, 2012 at 6:47pm
P(no heads) = 1/2^10 = 1/1024

P(no tails) = 1/1024

P(no heads|no tails) = 1/1024+1/1024 = 1/512

so, 1-1/512 = 511/512

another way to think of it is that the 1st toss must be identical to the next 9 tosses, so 1/2^9 is the P(next 9 the same)

## Answer This Question

## Related Questions

- finite - Assume that the coin is flipped 10 times. What is the probability that ...
- Probability - Suppose that an unfair coin comes up heads 54.1% of the time. The...
- math - Carolyn tested a coin to see if it was evenly weighted. She flipped the ...
- probability - Suppose an unfair coin comes up heads 52.2% of the time if it is ...
- probability - You flip a fair coin (i.e., the probability of obtaining Heads is ...
- statistics - air coin is flipped 20 times. a. Determine the probability that the...
- Math - A coin is loaded in such way that a tail is three times as likely to ...
- Math - A coin is loaded in such way that a tail is three times as likely to ...
- Math - A coin is loaded in such way that a tail is three times as likely to ...
- math - In a game, a player tosses a coin 4 times. If the player gets 3 or 4 ...

More Related Questions