10/04/19
Probability and independent or dependent events
A standard deck of playing cards contains 52 total cards, 13 of which are "spades".Suppose you and a friend are playing a game. You can choose any two cards from the deck without looking. If the...
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10/01/19
Calculus problem
Use the limit definition of the derivative to find the standard form equation of the tangent line to f(x) = 2x^2-5x-9 at x=3
09/28/19
The Riddler Express
If a baseball team is truly .500, meaning it has a 50 percent chance of winning each game, what’s the probability that it has won two of its last four games and four of its last eight games?
12/12/12
Probability and expected value
You are in business and you are given two opportunities. The first you will have to invest $5000 but you could earn $25,000 less your initial investment. The second you only have to invest $2000...
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