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10. In a class of 40 students there are 16 freshmen, 15 sophomores, 28 Indiana residents, and 5 stu- dents who are neither freshmen nor sophomores nor Indiana res- idents. All freshmen in this class are Indiana residents. How many Indiana residents are neither fresh- men nor sophomores? (A) 4 (B) 5 (C) 6 (D) 3 (E) 2 (F) none of the above

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Elin Hessel
Elin HesselLv2
25 Sep 2018
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PROBLEM 16: In a local restaurant, 40% of the customers were born in Indiana, 40% were born in Ohio, and 35% are IU students. In addition, 10% of the customers are IU students who were born in Indiana, and 20% are IU students who were born in Ohio. If one customer is randomly selected from the restaurant, and it is known that the customer was born in neither Indiana nor Ohio, what is the probability that the customer is an IU student? A) 1/4 B) 1/3 C) 1/5 D) 0.05 E) none of the above

22. In an experiment, a coin is tossed until either the game side comes up twice in a row, or the coin has been tossed four times. How many outcomes are there? (a) 6 (b) 8 (c) 10 (d) 16 (e) this experiment never stops (f) none of the above

12. In an experiment a coin is tossed until either the same side comes up twice in a row, or the coin has been tossed four times. The outcome (H or T) of each toss is noted. How many outcomes are there for this experiment? (A) 6 (B) 8 (C) 10 (D) 16 (E) this experiment never stops (F) none of the above

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