# Exams

### QNT 275 Final Exam 2017 – Probability Distribution Problems

For the probability distribution of a discrete random variable x, the sum of the probabilities of all values of x must be: Equal 1 Explanation: A sum of all values in a probability distribution will always add up to 1, period. The following table lists the probability [...]Read more

### QNT 275 Final Exam 2017 – Students Suffer from Math Anxiety

The following table gives the two-way classification of 500 students based on sex and whether or not they Suffer from Math Anxiety Sex – Yes – No Male – 168 – 72 Female – 167 – 93 If you randomly select one student from these 500 students, [...]Read more

### QNT 275 Final Exam 2017 – Seven Days of Summer in Los Angeles

The temperatures (in degrees Fahrenheit) observed during seven days of summer in Los Angeles are: 78, 99, 68, 91, 107, 75, 85 The range of these temperatures is: Find the range by subtracting the smallest number from the largest. 107 – 68 39 The variance of these temperatures, [...]Read more

### QNT 275 Final Exam 2017 – Cumulative Frequency Distribution of Commuting Time

The following table gives the cumulative frequency distribution of the commuting time (in minutes) from home to work for a sample of 400 persons selected from a city. Time (minutes) f 0 to less than 10 64 0 to less than 20 153 0 to less than 30 217 0 to less than 40 283 […]Read more

### QNT 275 Final Exam 2017 – Multiple Choice Study Guide

A quantitative variable is the only type of variable that can: assume numeric values for which arithmetic operations make sense Explanation: Quantitative values are numeric, while qualitative are labels, therefore, they are the only type that can perform arithmetic operations. A [...]Read more

### ECO 365 Exam Guide: Government and Society

ECO 365 Final Exam Answer Guide for Government and Society Topics The economy is driven by the actions of society, while the government works as an active influencer. Regulation, taxation, and subsidies are some of the most common tools used by government to control the economic [...]Read more

### ECO 365 Exam Guide: Labor Curve and Workforce Topics

ECO 365 Final Exam Answer Guide for the Labor Curve The labor curve is one of the most interesting topics in microeconomics because it behaves in a very unique manner. As labor hours increase wage go up… but after wages get too high, the labor curve starts to bend [...]Read more

### ECO 365 Exam Guide: Personal Choice in Microeconomics

ECO 365 Final Exam Answer Guide for Personal Choices Personal choice is the fundamental driver of all economic activity. Let’s take a look at some of topics that center around the concept of personal choice. Liz starts driving rashly Liz starts driving rashly after buying [...]Read more

### ECO 365 Exam Guide: Business and Profit Maximization

ECO 365 Final Exam Answer Guide for Profit Maximization Personal choice is the fundamental driver of all economic activity. Let’s take a look at some of topics that center around the concept of personal choice. Penelope recently started a printing business in Duluth [...]Read more

### ECO 365 Exam Guide: Supply Curves and Demand Curves

ECO 365 Final Exam Answer Supply Curves and Demand Curves Supply curves and demand curves are among the most important visualizations to understand in the field of economics. This section will cover answers that use these visual aids to explain the relationship between supply and [...]Read more