Statistics

1. Connor’s scores and their weighted percentages are given below. Calculate Connor’s mean score.

	Score	Weighted Percent
Homework Assignment 1	100	5%
Homework Assignment 2	95	5%
Homework Assignment 3	100	5%
Homework Assignment 4	93	5%
Quiz 1	85	20%
Quiz 2	92	20%
Project	98	15%
Final Exam	86	25%

2. The ages of the residents of Tiny Town are listed in the frequency distribution below. Find the approximate mean of the data.

Age	Frequency
0 – 9	73
10 – 19	61
20 – 29	38
30 – 39	62
40 – 49	86
50 – 59	54
60 – 69	41
70 – 79	29
80 – 89	10
90 - 100	2

3. Describe the approximate shape of the distribution (symmetric, uniform, skewed left, skewed right, none of these). Then describe the relationship between the mean, median and mode. Justify your reasoning .

a)	b)
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