# Probability and statistics

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A mysterious card-playing squirrel (pictured) offers you the opportunity to join in his game. The rules are:
To play you must pay him \$2.
If you pick a spade from a
shuffled pack, you win \$9. Find the expected value you win (or lose) per game.

• Probability and statistics -

expected value = (1/4)9 = \$2.25

I would gladly play with this mathematically challenged squirrel all day long.

• Probability and statistics -

how much will the squirrel expect to have

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