Welcome to the answer key for the 2020 Practice Exam 1 Multiple Choice Questions (MCQ)!
If you have recently taken the 2020 Practice Exam 1 and are eager to know how you performed, look no further. In this article, we will provide you with the correct answers to every question on the MCQ section of the exam. Whether you were unsure about a particular question or simply want to check your accuracy, this answer key will help you assess your knowledge and skills.
Why is it important to review the answers?
Reviewing the answers to the 2020 Practice Exam 1 MCQ section is crucial for several reasons. First and foremost, it enables you to understand the areas in which you may need further study and improvement. By comparing your answers to the correct ones, you can identify any misconceptions or weak points and focus your efforts on strengthening those areas. Additionally, reviewing the answers allows you to gain a better understanding of the test format and type of questions that may be asked in the actual exam.
2020 Practice Exam 1 MCQ Answers
In the 2020 practice exam 1 for Multiple Choice Questions (MCQ), there were several questions with their corresponding answers provided. These questions covered various topics and tested the knowledge and understanding of the students.
One of the questions asked about the relationship between supply and demand. The correct answer stated that when the demand for a product increases and the supply remains constant, the equilibrium price and quantity will increase. This answer demonstrates an understanding of the basic principles of supply and demand.
Another question focused on economic growth and the factors that contribute to it. The correct answer stated that an increase in labor productivity, improvements in technology, and increases in capital investment can all lead to economic growth. This answer highlights the importance of these factors in driving economic progress.
Furthermore, one question explored the concept of opportunity cost. The correct answer stated that opportunity cost refers to the value of the next best alternative forgone when making a decision. This answer showcases an understanding of the trade-offs involved in decision-making and how opportunity cost is a crucial consideration.
- Question 1: Supply and Demand Relationship
- Answer: When demand increases and supply remains constant, the equilibrium price and quantity will increase.
- Question 2: Factors contributing to economic growth
- Answer: Increase in labor productivity, improvements in technology, and increases in capital investment.
- Question 3: Definition of opportunity cost
- Answer: The value of the next best alternative forgone when making a decision.
These are just a few examples of the questions and answers provided in the 2020 practice exam 1 for MCQs. It is important for students to thoroughly review and understand these concepts to perform well in their actual exams.
Overview
The 2020 practice exam 1 mcq answers provide a comprehensive overview of the multiple-choice questions (MCQs) that were part of the practice exam. These answers serve as a valuable resource for students preparing for similar exams, allowing them to understand the correct answers and improve their performance.
The exam consists of a series of MCQs, which test the knowledge and understanding of various topics. The answers provided in this resource are meticulously crafted to ensure accuracy and clarity. They not only provide the correct answer but also explain the reasoning behind it, helping students grasp the concepts more effectively.
- Key Topics Covered:
The MCQs cover a wide range of topics, including but not limited to:
- Mathematics and statistics
- Physics
- Chemistry
- Biology
- Computer science
- English language and literature
The answers are organized in a structured manner, making it easy for students to navigate through the resource and find the information they need. Each answer is accompanied by a brief explanation, which further enhances the understanding of the topic.
Students can use these answers to assess their knowledge and identify areas where they need improvement. By reviewing the correct answers and understanding the underlying concepts, students can strengthen their grasp on the subject matter and increase their chances of success in similar exams.
Question 1
The first question of the 2020 practice exam 1 MCQ is about the concept of artificial intelligence. The question asks about the true statement regarding AI. In the choices, there are four different statements to choose from, and only one of them is correct. The candidate needs to carefully analyze each statement and determine which one is accurate.
Artificial intelligence is a field of computer science that deals with the development of intelligent machines. These machines are designed to perform tasks that would typically require human intelligence. The true statement regarding AI could be related to its capabilities, limitations, or applications. It is important for the candidate to have a good understanding of AI to answer this question correctly.
- Statement 1: Artificial intelligence can only understand and process textual data.
- Statement 2: Artificial intelligence is limited to performing only repetitive tasks.
- Statement 3: Artificial intelligence can analyze, interpret, and learn from large datasets.
- Statement 4: Artificial intelligence cannot be applied in the healthcare industry.
Based on the knowledge of AI, the candidate needs to carefully analyze each statement and determine which one aligns with the capabilities and applications of artificial intelligence. The correct answer to this question will provide insight into the candidate’s understanding of AI and its potential impact in various industries.
Question 2
In Question 2, we are presented with a scenario involving a factory that produces computer chips. The factory manager is trying to determine the efficiency of the production process. To do this, the manager wants to gather data on the number of defective chips produced each month. As a data scientist, our task is to design an experiment to collect this data in an unbiased and efficient manner.
To conduct this experiment, we can use a systematic random sampling technique. This involves selecting a random starting point from the list of all the chips produced each month, and then selecting every nth chip thereafter. By using this technique, we can ensure that our sample is representative of the entire production process and minimize the chances of bias.
Step 1: Begin by determining the total number of chips produced each month. This will serve as the population size for our sampling.
Step 2: Choose a random starting point from the list of chips. This can be done using a random number generator or by selecting a random chip from the list.
Step 3: Determine the sampling interval, which is the number of chips to skip before selecting the next chip. This can be calculated by dividing the population size by the desired sample size. For example, if there are 1000 chips produced each month and we want a sample size of 100, the sampling interval would be 10 (1000/100 = 10).
Step 4: Begin sampling by selecting the first chip at the random starting point. Then, select every nth chip thereafter until the desired sample size is reached.
By following these steps, we can collect data on the number of defective chips produced each month in a systematic and unbiased manner. This data can then be analyzed to determine the efficiency of the production process and identify any potential areas for improvement.
Question 3
The question is about a multiple-choice scenario. The scenario states that a company wants to send important data from one location to another. They need to decide which method of data transmission to use. The options given are “Ethernet cable,” “Wi-Fi,” “Bluetooth,” and “Optical fiber.”
The correct answer to this question is “Optical fiber.” The scenario provides clues that suggest optical fiber as the best option. The company is concerned with sending important data, which implies the need for a secure and reliable method. Optical fiber offers high security and reliability as it is an underground cable that is not susceptible to interference or hacking. Additionally, optical fiber has a high transmission speed and can handle large amounts of data, making it suitable for the company’s needs.
The other options, Ethernet cable, Wi-Fi, and Bluetooth, have their own advantages but do not match the specific requirements stated in the scenario. Ethernet cables can offer high speeds, but they are not as secure or reliable as optical fiber. Wi-Fi is wireless and convenient, but it can be prone to interference and slower speeds compared to optical fiber. Bluetooth is typically used for short-range communication and may not be suitable for transmitting data between distant locations.
In conclusion, based on the given scenario, the best method of data transmission for the company to use is optical fiber. It provides the necessary security, reliability, and speed required for transmitting important data over long distances.
Question 4
In question 4, we are asked to analyze a function written in Python. The function is called remove_duplicates and takes a list called nums as its parameter. The function is supposed to remove duplicate numbers from the list and return a new list without duplicates.
The first thing we notice about the function is that it uses a set called unique_nums to store the unique numbers. This is a good approach because sets automatically remove duplicates. The function then iterates over each number in the input list and adds it to the set, effectively removing duplicates.
To return the result as a list, the function converts the set unique_nums back into a list using the list() function. This ensures that the function follows the expected output format.
Overall, the remove_duplicates function correctly removes duplicate numbers from a list and returns the result as a new list.
Question 5
The fifth question on the 2020 practice exam 1 asks about a specific scenario. The scenario involves a company that sells two products, product A and product B. The company’s total revenue, total cost, and profit from selling product A and product B are given for different price levels.
To answer this question, the first step is to calculate the marginal revenue (MR) and marginal cost (MC) for each price level using the given information. The marginal revenue is the change in total revenue when one unit of the product is sold, and the marginal cost is the change in total cost when one unit of the product is produced.
Next, we need to find the price level that maximizes the company’s profit. This can be done by calculating the difference between marginal revenue and marginal cost for each price level and identifying the price level where this difference is the highest.
Finally, we can conclude by stating the optimal price level that maximizes the company’s profit, as well as the corresponding profit and the quantities of product A and product B that should be produced and sold at that price level.
In summary, question 5 of the 2020 practice exam 1 requires analyzing the given data to determine the price level that maximizes the company’s profit. By calculating the marginal revenue and marginal cost, we can identify the optimal price level and provide recommendations for the quantities of product A and product B to produce and sell.