# GHA 3 - STT 200 Section Graded HA#3 Name Please write the...

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STT 200 Section …... Graded HA #3 Name _________________________ Please write the section number (-1 pt. if missing) Number of points for each problem is in brackets [ ]. 1. [10] A person with type O blood can receive blood only from other type O donors. About 44% of the U.S. population has type O blood. At a blood drive, how many potential donors do you expect to examine in order to get three units of type O blood? Please a) Describe how you simulate a trial b) Perform 20 simulations (start from the beginning of the third row of the Table of Random Digits, Appendix E) and for each record the number of donors examined c) Compute the average of the 20 trials

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2. [14] A sporting goods store announces a “Wheel of Savings” sale. Customers select the merchandise they want to purchase, then at the cash register they spin a wheel to determine the size of the discount they will receive. The wheel is divided into 12 regions, like a clock. Four of those regions are red, and award a 5% discount. The three
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GHA 3 - STT 200 Section Graded HA#3 Name Please write the...

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