quiz-06-histo.txt, cr 20 feb 2015 by rha and ht on pro

scoring: one point for each question (max = 4)

QZ-#05 --- MAX = 4, AVG = 2.1
QZ-TOT --- MAX = 34, AVG = 12.9 ( 10 or lower = danger)

histogram QZ-#06


4	* (1)	

3	************ (12)

2	****** (6)

1	******** (8)

0	* (0)

end