Question

1. The finance manager for Widget Inc. would like to analyze the following sales data for Widget Inc.in 2012.  

39	35	84	68	72	52	46	60
50	55	60	57	55	56	73	74
78	63	70	49	56	91	57	54
50	41	59	57	62	59	44	79
62	57	51	85	67	69	52	85
49	66	56	60	56	46	64	60

1. Calculate two statistics that measure variability.  What do these statistics tell us about the data?
2. Calculate two statistics that measure central tendency.  What do these statistics tell us about the data?
3. Create a frequency distribution of the sales data.  (Include all five columns in your frequency distribution).
4. Find the 80^th percentile.  What does this number represent?

Answer 1