1- A group of people were asked if they had run a red light in the last year. 158 responded "yes", and 262 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.

2-

Probability	Scores
0.15	2
0.25	4
0.1	5
0.05	6
0.3	11
0.05	13
0.1	14

Find the expected value of the above random variable. 3-Assume that 12 jurors are randomly selected from a population in which 85% of the people are Mexican-Americans. Refer to the probability distribution table below and find the indicated probabilities.

x	P(x)
0	0+
1	0+
2	0+
3	0+
4	0.0001
5	0.0006
6	0.004
7	0.0193
8	0.0683
9	0.172
10	0.2924
11	0.3012
12	0.1422

Find the probability of exactly 7 Mexican-Americans among 12 jurors. Round your answer to four decimal places. P(x=7)= Find the probability of 7 or fewer Mexican-Americans among 12 jurors. Round your answer to four decimal places. P(x7)=

Does 7 Mexican-Americans among 12 jurors suggest that the selection process discriminates against Mexican-Americans?

• no
• yes