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1. Out of the 3000 families who live in an apartment complex in St. James, 600 paid no income tax last year. What is the probability that a randomly selected family from these 3000 families paid income tax last year? A) 0.20 B) 0.80 C) 0.72 D) 0.58

1. Out of the 3000 families who live in an apartment complex in St. James, 600 paid no income tax last year. What is the probability that a randomly selected family from these 3000 families paid income tax last year? A) 0.20 B) 0.80 C) 0.72 D) 0.58

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Quantative Methods Multiple Choice 1-6

This section contains twenty (20) multiple-choice questions. Answer ALL questions in this section 1. Out of the 3000 families who live in an apartment complex in St. James, 600 paid no income tax last year. What is the probability that a randomly selected family from these 3000 families paid income tax last year? A) 0.20 B) 0.80 C) 0.72 D) 0.58 2. Which of the following is an example of a Poisson experiment? A) Tossing a coin 100 times and observing for a head or a tail. B) Rolling a die 20 times and observing for the number 6. C) Drawing three yellow marbles from a box that contains 7 blue, and 11 yellow marbles. D) Finding the probability that a salesperson who sells about 8 cell phones per day sells 10 today. 3. Probabilities of different types of vehicle-to-vehicle accidents are shown below: Accident Car to Car Car to Truck Truck to Truck Find the probability that an accident involves a car. C) 0.11 D) 0.19 A) 0.81 B) 0.70 Probability 0.70 0.11 0.19 4. Which of the following satisfies a binomial distribution? (i) Each trial has only two outcomes- a success and a failure. (ii) There is infinite number of trials. (iii) The probability of success changes from trial to trial. (iv) Trials are random and independent A) (i), (ii) and (iv) only B) (i) and (ii) only C) (i) and (iii) only D) (i) and (iv) only 5. A Poisson distribution has a of 16. The mean, variance and standard deviation are: A) 16, 8, 4 B) 16, 4, 2 C) 16, 16, 4 D) cannot be calculated 6. Suppose we have a population that does not follow the normal distribution. What should the minimum size of the sample selected be, so that the distribution will approximate a normal distribution? A) 5 B) 10 C) 15 D) 30 Page 2 of 13
Transcribed Image Text:This section contains twenty (20) multiple-choice questions. Answer ALL questions in this section 1. Out of the 3000 families who live in an apartment complex in St. James, 600 paid no income tax last year. What is the probability that a randomly selected family from these 3000 families paid income tax last year? A) 0.20 B) 0.80 C) 0.72 D) 0.58 2. Which of the following is an example of a Poisson experiment? A) Tossing a coin 100 times and observing for a head or a tail. B) Rolling a die 20 times and observing for the number 6. C) Drawing three yellow marbles from a box that contains 7 blue, and 11 yellow marbles. D) Finding the probability that a salesperson who sells about 8 cell phones per day sells 10 today. 3. Probabilities of different types of vehicle-to-vehicle accidents are shown below: Accident Car to Car Car to Truck Truck to Truck Find the probability that an accident involves a car. C) 0.11 D) 0.19 A) 0.81 B) 0.70 Probability 0.70 0.11 0.19 4. Which of the following satisfies a binomial distribution? (i) Each trial has only two outcomes- a success and a failure. (ii) There is infinite number of trials. (iii) The probability of success changes from trial to trial. (iv) Trials are random and independent A) (i), (ii) and (iv) only B) (i) and (ii) only C) (i) and (iii) only D) (i) and (iv) only 5. A Poisson distribution has a of 16. The mean, variance and standard deviation are: A) 16, 8, 4 B) 16, 4, 2 C) 16, 16, 4 D) cannot be calculated 6. Suppose we have a population that does not follow the normal distribution. What should the minimum size of the sample selected be, so that the distribution will approximate a normal distribution? A) 5 B) 10 C) 15 D) 30 Page 2 of 13
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