Which of these is the first step in Data Science Life Cycle?Answer choicesSelect an optionData PreprocessingKnowledge RepresentationData AcquisitionMachine Learning1/10 ATTEMPTED

How data is stored is a very crucial part of the data cycle. Which of the following best represents this part of the data cycle?Group of answer choicesManagementProcessingInterpretationAnalysis

In the plan stage of the data life cycle, what decisions would a data analyst make? Select all that apply.1 pointWho will be responsible for the dataHow the data will be analyzedWhat kind of data is neededHow the data will be managed2.Question 2A data analyst has finished an analysis project that involved private company data. They erase the digital files in order to keep the information secure. This describes which stage of the data life cycle?1 pointPlanDestroyManage Archive3.Question 3A data analyst is working at a small tech startup. On their current project they are using spreadsheets to aggregate data. In which stage of the data life cycle is this analyst?1 pointArchiveAnalyzePlan Manage4.Question 4Describe how the data life cycle differs from data analysis.1 pointThe data life cycle deals with the stages that data goes through during its useful life; data analysis is the process of analyzing data.The data life cycle deals with making informed decisions; data analysis is using tools to transform data.The data life cycle deals with transforming and verifying data; data analysis is using the insights gained from the data.The data life cycle deals with identifying the best data to solve a problem; data analysis is about asking effective questions.5.Question 5A company takes the insights provided by its data analytics team, validates them, and finalizes a strategy. They then implement a plan to solve the original business problem. This describes the share step of the data analysis process.1 pointTrueFalse6.Question 6Fill in the blank: A formula is a set of instructions used to perform a specified calculation; whereas a function is _____.1 pointa preset commanda computer programming languagea particular valuea question written by the user7.Question 7What does a data analyst use to request information within a database?1 pointCalculationFormulaQueryDashboard8.Question 8Structured query language (SQL) enables data analysts to communicate with a database.1 pointTrueFalse

Which of the following also used as the first step in the knowledge discovery process?Question 13Answera.Data transformationb.Data integrationc.Data selectiond.Data cleaning

Question 1Fill in the blank: The first stage of the data science methodology is ___________________.1 pointModelingData CollectionBusiness UnderstandingData Understandin

In the preliminary investigation phase of the systems life cycle, which one of the following tasks would not be included?Multiple ChoiceBriefly defining the problemSuggesting alternative solutionsGathering the dataPreparing a short report