Quiz 1 Mat540

1) you are given a bag containing 12 checkers, 5 of which are black. You select 3 checkers from the bag without replacing any, what is the probability that you selected 2 black checkers?

2) Sales/mo Probability

10000 0.57512

22000 0.22508

37000 0.08561

Given the data above, what can you credibly say about next month sales?

3) Good little children are rare. Only 2 out 10 qualify. When Santa lands on a house with 3 children , what is the probability that 2 of these children are good?

4) Sales Month

12500 1

13700 2

9800 3

10100 4

11775 5

12905 6

On this basis, How unusual is a month with sales of 15000?

5) Sales/week Probability

100 0.1

125 0.2

150 0.6

175 0.1

Calculate the expected value and standard deviation for the sales?

1) you are given a bag containing 12 checkers, 5 of which are black. You select 3 checkers from the bag without replacing any, what is the probability that you selected 2 black checkers?

2) Sales/mo Probability

10000 0.57512

22000 0.22508

37000 0.08561

Given the data above, what can you credibly say about next month sales?

3) Good little children are rare. Only 2 out 10 qualify. When Santa lands on a house with 3 children , what is the probability that 2 of these children are good?

4) Sales Month

12500 1

13700 2

9800 3

10100 4

11775 5

12905 6

On this basis, How unusual is a month with sales of 15000?

5) Sales/week Probability

100 0.1

125 0.2

150 0.6

175 0.1

Calculate the expected value and standard deviation for the sales?

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