The Data Analytics Journey (PLDC) 59 Questions And Answers

Which activity does an analyst perform in the discovery phase of the data analytics life cycle? - ️️Identifying business needs In which phase of the data analytics life cycle does an analyst build a histogram? - ️️Data exploration An analyst applies a statistical formula to obtain the average temperature for a city over the last 50 years. Which phase of the data analytics life cycle is represented by this activity - ️️Exploratory data analysis An analyst has been tasked with defining data columns that could contain null values. Which activity of the data acquisition phase is represented? - ️️Detecting missing values Which activity in the data analytics life cycle occurs during the data acquisition phase and requires the most time and effort from the data analyst? - ️️Cleaning data What might be developed by data analysts when acquiring data from a data warehouse? - ️️The SQL queries of data within the tables What can be identified using a box plot? - ️️Interquartile range What will be a consequence of poor attention to detail during the data exploration phase? - ️️The analyst will lack insight into the structure of the data set. Which aspect of data exploration occurs when an analyst writes code to compile a bar graph of dog food sales per month? - ️️Verification through visualization