An urn contains twelve chips - four red, three black, and five white. A sample size 4 is to be drawn without replacement. Let X denote the number of white chips in the sample and Y is the number of red. Find FX, Y (1, 2).

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?