Wetzel                                                                                                                                                                                                                  Summer 2006

Math 155

Test #4

                                                                                                                                                                                            Name: _____________________

Given a bag marbles.  There are 5 blue, 4 black, 2 white, 7 yellow, and 6 red marbles in the bag.  Use this information to find the following probabilities for randomly choosing ONE marble from the bag.

1.)  P(red) =                                                     2.)  P(blue) =

3.)  P(white or black) =                                    4.)  P(not yellow) =

5.)  To play the pick 4 lottery game, you choose 4 digits (0-9).  If you can choose the same number twice, how many possible number combinations could you choose?

Given the set: {100, 40, 70, 40, 60}, find the following:

6.)  Mean                                                   7.)  Median

8.)  Mode                                                   9.)  Range                               

10.)  Standard Deviation