Friday

November 28, 2014

November 28, 2014

Posted by **Samantha** on Thursday, November 14, 2013 at 9:58am.

What is the probability of picking a winning number?

Then suppose the Ping Pong ball was not replaced. Now what is the probability?

- Math--PLEASE HELP!!! -
**Reiny**, Thursday, November 14, 2013 at 10:27am10 cases for 1st draw, 10 for the 2nd, 10 for the third, 10 for the 4th

prob = 1/10^4 = 1/10000

if ball is not returned

prob = 1/(10*9*8*7) = 1/5040

**Answer this Question**

**Related Questions**

physics - Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = ...

physics - Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = ...

physics - Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = ...

Math - A bag contains a set of ping pong balls numbered from 1 to 12. If you ...

Physics - How much kinetic energy does a 1 kg ball have if it has a velocity of ...

Math - A box containing 20 yellow balls, 9 red balls and 6 blue balls. If the ...

physics - A 3.0 g ping pong ball is suspended from a thread 35 cm long. When a ...

math-probability - A state lottery has a daily drawing to form a four-digit ...

math - please help to get the answer for this word problem and it would be my ...

probability - Two questions: 1. Assume a building has two independent security ...