Homework Help: Math

Posted by D. on Saturday, June 13, 2009 at 12:17pm.

A coin purse contains 10 pennies, 5 nickels, 3 dimes, and 2 quarters. Two coins are selected without the first one being replaced. Find P(quarter, then nickel).

Math - Elina, Saturday, June 13, 2009 at 1:55pm
are you on the probability chapter?
Math - Maya, Saturday, June 13, 2009 at 2:06pm
yes
Math - Reiny, Saturday, June 13, 2009 at 2:33pm
If you want the prob(quarter, then nickel) in that specific order then it would be
2/20 x 5/19 = 1/38

If the order does not matter, it would be twice that, or 1/19

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