Thursday

April 24, 2014

April 24, 2014

Posted by **Anonymous** on Sunday, February 27, 2011 at 2:11pm.

- math -
**PsyDAG**, Monday, February 28, 2011 at 11:06amn = # of things to choose from and r = # that you choose.

5! = 5 factorial = 5*4*3*2*1 = 120

nCr = n!/r!(n-r)!

**Related Questions**

math - a fair coin is tossed in the air 4 times. if the coin lands heads up the ...

CALC - A biased coin whose chance of heads is 0.4 is tossed five times in a row...

Math Problem ( 6th grade math) - Brandon tosses a coin 500 times. The coin lands...

Math - Someone tossed a coin 80 times.The coin landed on heads 60 times. Is the ...

Math - Luis has a coin that is weighted so that the probability that Heads ...

Probability - A balanced coin is tossed 8 times. What is the probability of ...

Probability - A balanced coin is tossed 8 times. What is the probability of ...

Probability - Suppose that an unfair coin comes up heads 54.1% of the time. The...

Stat. - A trick coin has been weighted so that heads occurs with a probability ...

math - A fair coin is tossed 10 times. What is the probability of getting ...