quiz-02-histo.txt, cr 23 jan 2015 by rha and ht on pro

scoring: one point for each of six questions
histogram:

6	******* (7)

5	****(4)

4	******* (7)

3	*** (3)

2	* (1)

1	* (1)

0	---- (0)

number = 23
median = 4.5
average = 4.4

end