After the daily ETL jobs are completed, the data in the reports does not appear complete, and a lot of data seems to be missing. Which of the following concepts should be used to assess and investigate further?
An analyst has conducted a review of business questions. Which of the following should the analyst do next to conduct an analysis?
A data analyst has a set with more than 40.000 rows in the sample schema below:
The analyst would like to create one column that contains the customers’ birth dates. Which of the following data quality dimensions would BEST explain the reason for compilation?
An e-commerce company recently tested a new website layout. The website was tested by a test group of customers, and an old website was presented to a control group. The table below shows the percentage of users in each group who made purchases on the websites:
Which of the following conclusions is accurate at a 95% confidence interval?
An analyst wants to include a graph in a quarterly sales report that shows the comparison between two quantitative variables. Which of the following visual diagrams can the analyst use to most effectively represent this relationship?
Which of the following is a control measure for preventing a data breach?
A data analyst is working for a shipping company and calculating the volume of boxes according to the following formula:
volume = height × width × depth.
Which of the following variable types describes volume?
