ReviewSessionWorksheet

ReviewSessionWorksheet - MTH U115 Sample Midterm Exam...

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MTH U115 Sample Midterm Exam Questions — Spring 2008 Let U = {- 1 , 0 , 1 , 2 , 3 ,a,b,c,d } , R = { 2 , 3 ,b,c } , S = {- 1 , 0 ,c,d } , and T = { 0 , 2 ,a,c } Use this information to answer questions #1 and #2. 1. Find ( R 0 T ) A) { 0 ,a } B) {- 1 , 0 , 1 ,a,c,d } C) { 0 , 1 ,a } D) { 2 ,c } E) None Answer # 1: 2. Find ( S T ) 0 A) {- 1 , 1 , 2 , 3 ,a,b,d } B) { 3 } C) {- 1 , 0 , 1 , 2 ,a,c,d } D) { 0 ,c } E) None Answer # 2: 3. A pair of fair dice (one red, one green) are rolled. What is the probability that the sum rolled is a 2, 3, or 12 (“craps”)? A) 1 9 B) 1 4 C) 1 12 D) 1 3 E) None Answer # 3: 4. A pair of fair dice (one red, one green) are rolled. What is the probability that the first die shows a 4 or the sum rolled is a 6? A) 5 18 B) 11 36 C) 1 6 D) 2 9 E) None Answer # 4: 5. A candy manufacturer makes 7 kinds of dark chocolate candies and 5 kinds of white chocolate candies. A sample package contains 3 kinds of dark chocolate and 2 kinds of white chocolate candies. How many different sample packages can be prepared? A) 350 B) 35 C) 45 D) 4,200 E) None Answer # 5: 6. The program committee for a folk music festival must arrange 7 numbers for an evening performance. There are 12 numbers available. How many different ar- rangements of the evening performance are possible? A) 95,040 B) 792 C) 5,040 D) 3,991,680 E) None Answer # 6: 7. A group of 4 students is to be selected from a group of 10 students to take part in a class in cell biology. In how many ways can this group be chosen? A) 5,040 B) 240 C) 210 D) 40 E) None Answer # 7: 8. How many different 5-letter words beginning with two vowels can be formed from the letters in the word PECULATOR, if repetition is not allowed and there are no other restrictions? A) 720 B) 2,520 C) 4,032 D) 126 E) None Answer # 8: The Business Students Club is composed of 20% sophomores, 35% juniors, and 45% seniors. The Accounting Department was interested to learn that 15% of the sophomores are accounting majors, as are 10% of the juniors and 21% of the seniors. Use this information to answer questions #9 and #10.
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This note was uploaded on 03/30/2008 for the course MTHU 115 taught by Professor Banerjee during the Spring '08 term at Northeastern.

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ReviewSessionWorksheet - MTH U115 Sample Midterm Exam...

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