February 21, 2017

Homework Help: math help

Posted by Abby on Thursday, May 24, 2012 at 6:04am.

"Three cards are randomly selected from a standard 52-card deck. What is the probability of getting 3 hearts or 3 numbers less than 6 (count aces as 1)?"

I think the answer is 0.0645, but I'm not sure if this is right. Could someone check this?

"Half of a circle is inside a square and half is outside. If a point is selected at random inside the square, find the probability that the point is NOT inside the circle."

I know the area of the square is 4r^2 and the area of the circle is pie r^2, but other than that I have no idea how to solve this. Would someone please help me?

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