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Statistics

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A sample of 4 people is selected from a group of six people named Ali, Bina, Chris, David, Erin and Frank.

1. How many such samples are possible?

2. What is the probability a sample containing Bina and Chris is selected.

3. How many different simple random samples of size 8 can be selected from a population consisting of 70 people? (you may use the combinations)

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