The following data represents the age of 30 lottery winners.

20	27	27	29	31	33
35	36	36	39	42	43
47	47	52	53	55	55
59	61	62	63	63	64
68	70	72	74	77	83

If you create a frequency distribution table and want a bin size of 9, how many bins will you have?

bins