# math

Melissa has 10 coins in her pocket.
2 quarters
3 dimes
4 nickel
1 penny

What is the theoretical probability of pulling a quarter out of your pocket, putting it back, then pulling out a penn?

Also what is the theoretical probability of pulling a nickel out of your pocket, spending it, than pulling the penny out of your pocket?

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2. 👎 0
3. 👁 152

the second:
prob(nickel, then penny)
= (4/10)(1/9)
= 4/90
= 2/45

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posted by Reiny

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