Data Analysis, Probability, and Discrete Mathematics

Data Analysis (Statistics) Probability Discrete Mathematics- Systematic Listing, Counting Discrete Mathematics- Vertex/Edge Graphs, Algorithms

Sample Question

A drawer contains 4 red pens, 5 blue pens, and 2 black pens.  If you reach into the drawer without looking and pull out a pen for you and a pen for your work partner, what is the probability that the first pen will be blue and the second pen will be black?

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