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Data Analysis

Data analysis courses address methods for managing and analyzing large datasets. Start your career as a data scientist by studying data
mining, big data applications, and data product development.

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Considering the size of your dataset, you decide a spreadsheet will be the best tool for your project. You proceed by downloading the data from the database. Describe why this is the best choice.

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Data Analysis Data Science Questions

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A data analyst wants to demonstrate a trend of how something has changed over time. What type of chart is best for this task?

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Data Analysis Data Science Questions

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In the following spreadsheet, where can you find all of the attributes — also known as the observation — of Fayetteville?

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Data Analysis Data Science Questions

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If a data analyst wants to list the cities in this spreadsheet alphabetically, instead of numerically, what feature can they use in column B?

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Data Analysis Data Science Questions

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You are writing a query that asks a database to retrieve data about the customer with identification number 244. The column name for customer identification numbers is customer_id. What is the correct SQL clause?

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Data Analysis Data Science Questions

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A data analyst wants to demonstrate how the population in Charlotte has increased over time. They create the chart below. What is this type of chart called?

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Data Analysis Data Science Questions

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Fill in the blank: A data analyst creates a table, but they realize this isn’t the best visualization for their data. To fix the problem, they decide to use the _____ feature to change it to a column chart.

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Data Analysis Data Science Questions

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In row 1 of the following spreadsheet, the words rank, name, population, and county are called what?

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Data Analysis Data Science Questions

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To find the average population of the cities in this spreadsheet, what is the correct AVERAGE function syntax?

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Data Analysis Data Science Questions

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Fill in the blank: In row 8 of the following spreadsheet, you can find the _____ of Cary.

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Data Analysis Data Science Questions

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When writing a query, what word does a data analyst use to indicate the table from which the data will be retrieved?

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Data Analysis Data Science Questions

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You are writing a query that asks a database to retrieve data about the customer with identification number 5656. The column name for customer identification numbers is customer_id. What is the correct SQL clause?

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Data Analysis Data Science Questions

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Fill in the blank: In the following spreadsheet, the _____ feature was used to alphabetize the city names in column B.

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Data Analysis Data Science Questions

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In the following spreadsheet, the observation of Greensboro describes all of the data in row 4.

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Data Analysis Data Science Questions

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In the following spreadsheet, the column labels in row 1 are called what?

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Data Analysis Data Science Questions

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In the following query, FROM is telling the database to filter out data from the Orders table.

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Data Analysis Data Science Questions

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A data analyst wants to demonstrate how the population in Charlotte has increased over time. They create this data visualization. This is an example of an area chart.

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Data Analysis Data Science Questions

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To find the average population of the cities in this spreadsheet, you type =AVERAGE. What is the proper way to type the range that will complete your function?

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Data Analysis Data Science Questions

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In the following query, what does FROM tell the database?

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Data Analysis Data Science Questions

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You are writing a query that asks a database to retrieve data about the customer with identification number 1057. The column name for customer identification numbers is customer_id. What is the correct SQL clause?

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Data Analysis Data Science Questions

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A data analyst creates the following visualization to clearly demonstrate how much more populous Charlotte is than the next-largest North Carolina city, Raleigh. What type of chart is it?

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Data Analysis Data Science Questions

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The column attributes for rank, name, population, and county are located in which row of the following spreadsheet?

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Data Analysis Data Science Questions

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Fill in the blank: A query is used to _____ information from a database. Select all that apply.

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Data Analysis Data Science Questions

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Fill in the blank: A formula is a set of instructions used to perform a specified calculation; whereas a function is _____.

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Data Analysis Data Science Questions

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  • As a project manager, you’re trying to take all the right steps to prepare for the project. What steps should you take? Select all that apply.
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  • Fill in the blank: During the planning phase of a project, you take steps that help you _____ to achieve your project goals.
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