1. Suppose that the probability of a certain tennis player serving an ace is 0.3. In 5 serves, what is the probability that she serves 5 aces? (Express your answer accurate to 5 decimal places.)

2. To test the reliability of a lot (a unit of production) of toys produced at a factory, the first 500 toys of a lot of 8000 toys are tested for quality. Describe the population, the sample, and any potential sources of bias.

3. Determine the 210th term of the sequence -8, 14, -20, 26, -32?

4. A number x is in the 80th percentile of a data set if x is less than or equal to 80% of the data.

Thank yo so much for your help - I need to know how to work each problem not just answers...it is a huge help before my final!!!

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