Data analytics midterm - Study guides, Class notes & Summaries

BA 304 Midterm Exam | Questions with Verified Answers Which of the following is the correct definition of algorithms? mathematical formulas placed in software that performs an analysis on a dataset Select all of the following that represent forms of structured data. (Check all that apply.) - sensor data - web log data - clickstream data - point-of-sale data Select the four common characteristics of big data along with the correct definition. (Check all that apply.) - variety—represents diffe...

Assumptions of OLS Linearity Assumption: E[Y] = β0 + β1x. We are assuming the expected value of Y for any given X is a linear function of X (approximates to a straight line) 2. Assumption about errors: We assume the error terms are independently and identically distributed (iid) normal random variables with 0 mean and variance σ. 3. Assumptions about predictors: For multiple regression (more than 1 predictor) we assume the predictors are linearly independent. Heteroskedasticity might requi...

BCOR Midterm Exam Questions and Answers | Latest Update 2024 | Rated A+. Business Problems How much to produce, How much to buy, When to open the store, What products to promote? Decision making types Strategic decisions, Tactical (managerial) decisions, and operational decisions Strategic decisions A decision that involves higher-level issues and that is concerned with the overall direction of the organization, defining the overall goals and aspirations for the organization's future. Ta...

(Excelsior) BUS431 Business Data Analytics - Latest Midterm Review .(Excelsior) BUS431 Business Data Analytics - Latest Midterm Review .(Excelsior) BUS431 Business Data Analytics - Latest Midterm Review .

HRMT 1101 Midterm Exam Questions & Answers 2024/25 Strategic HRM Process - ANSWERS1. establish the mission and the vision & strategy analysis 2. environemntal scan 3. anaysis of org character and culture 4. choice and implement of HR strategies w, education and audit of HR strategies What is at the core of all social organizations? - ANSWERSpeople 5 majors forces to consider in environmental scan - ANSWERSEconomic (cycles, global trades, productivity and inno improvement, knowl...

OMIS 472 Midterm Exam Question and answers correctly solved OMIS 472 Midterm Exam Data = - correct answer -raw figures -metadata Information = - correct answer With context data become information, reveals relationships between entities (What?) Knowledge = - correct answer With added meaning, reveals trends and patterns (Why?) Wisdom = - correct answer reveals ideas, principles, biases, insights over time (What could happen?) Decision= - correct answer course of acti...

BUAN 4310 Midterm Questions and Answers Already Passed What part of the data mining process takes the most time? Exploratory Data Analysis The purpose of sampling is to _____________________. Obtain sufficient information to draw a valid inference about a population. In data mining, classification is _______________________. a division of a set of examples into a number of categories. What is one appropriate strategy when the data set is too small for partitioning? Cross- valid...

Business Problems How much to produce, How much to buy, When to open the store, What products to promote? Decision making types Strategic decisions, Tactical (managerial) decisions, and operational decisions Strategic decisions A decision that involves higher-level issues and that is concerned with the overall direction of the organization, defining the overall goals and aspirations for the organization's future. Tactical (Managerial) decisions A decision concerned with how the organizat...

MIS 301 Midterm 1 Question and answer rated A+ 2024 T/F: The rise of open source software has lowered computing costs for startup and blue-chip companies worldwide - correct answer true T/F: Data analytics and business intelligence are driving discovery and innovation - correct answer true T/F: Facebook was founded by Sergey Brin - correct answer false T/F: Many of the careers in marketing are highly tech-centric - correct answer true T/F: Firms are increasingly shifting sp...

OMIS Midterm Prep Questions with complete solution OMIS Midterm Prep Decision making process - correct answer 1. Identify the problem 2. determine criteria used to evaluate alternatives 3. determine alternatives 4. evaluate alternatives 5. Choose alternative Types of decisions - correct answer 1. Strategic - high level 2. Tactical - med level 3. Operational - day to day two factors that make decision making difficult - correct answer 1. Uncertainty 2. Overwhelming number...