- #1
Miike012
- 1,009
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You flip a count 10 times what is the probability of getting exactly four tails?
My solution.
out of ten flips you can get
0 tails out of 10 flips
1 tails out of 10 flips
2 tails out of ten flips
3 tails out of ten flips
4 tails out of ten flips
5 tails out of ten flips
6 tails out of ten flips
7 tails out of ten flips
8 tails out of ten flips
9 tails out of ten flips
or
10 tails out of ten flips
So there are 11 different cases. Therefore would the answer be 1/11?
My solution.
out of ten flips you can get
0 tails out of 10 flips
1 tails out of 10 flips
2 tails out of ten flips
3 tails out of ten flips
4 tails out of ten flips
5 tails out of ten flips
6 tails out of ten flips
7 tails out of ten flips
8 tails out of ten flips
9 tails out of ten flips
or
10 tails out of ten flips
So there are 11 different cases. Therefore would the answer be 1/11?