A data analyst is creating a forecast for a product line introduced early last year. Which of the following should the analyst use to create projected sales and customer satisfaction for next year?
A data analyst wants to find the mean score that students received in science classes. Given the following tables:

Which of the following will produce the desired results?
A project manager requests an unscheduled report that provides a list of clients. Which of the following frequencies is best for this report?
A data analyst receives four files that need to be unified into a single spreadsheet for further analysis. All of the files have the same structure, number of columns, and field names, but each file contains different values. Which of the following methods will help the analyst convert the files into a single spreadsheet?
Due to new reporting requirements, a data analyst must add new classification codes to historical data. Which of the following is the best technique for this task?
A data breach occurs at a company. Which of the following actions should be taken?
