IT Specialist : Data Analytics Practice Exam 1. You want to provide examples of different types of bias in data analytics. Move the appropriate bias types from the list on the left to the correct example on the right. You may use each bias type once, more than once, or not at all. A. A data analyst believes that people who do not watch the news are under age 40. The analyst then decides to only interview people under age 40. Answer:Confirmation B. A school will be rewarded a $10,000 grant if it performs well academically. A data analyst at the school creates a report that filters data for good grades only Answer:Motivational C. A researcher is conducting a nationwide survey of opinions on current economic conditions. All surveys are conducted in major cities in the five states where the researcher has survey takers. Answer:Sampling 2. You are analyzing data from a movie streaming service. You need to determine which visualization to use to answer questions about the data. Move the chart types from the list on the left to the correct question it can answer on the right! A. Does colder weather lead to more streaming? Answer: Scatter chart B. Do most users prefer to watch comedy? Answer: Pie chart C. Which movie category is streamed the most each month over the last 12 months? Answer: Bar chart 3. Your company produces two different products. Product A sells well but is expensive to produce. Product B's sales are mediocre, but the product costs very little to make. Your manager wants to maximize production between the two products. What type of data should you use to recommend which product to keep? A. Diagnostic B. Descriptive C. Prescriptive D. Predictive 4. Move each term from the list on the left to the correct definition on the right A. This is a process, program, or set of rules that are used in calculations and problem solving. Answer:Algorithm B. This is a field of computer science that allows a computer system to simulate human-like thinking. Answer:Artificial Intelligence C. This is a field of computer science that allows a software application to make decisions or predict behavior based on past events. Answer:Machine Learning 5. A researcher is working with an extensive data set that contains many categories of data. Each category can contain one of 100 distinct values. She takes data from several of those categories and aggregates that data to create a new table that will automatically summarize the data in each selected category. What is this new table called? A. Binary Table B. Tree Map C. Pivot Table D. Frequency Table