Question 1

Affinity determines values for an unknown continuous variable behavior or estimated future value.

Accepted Answer

Affinity refers to the similarity or connection between entities, not the determination of values for unknown continuous variables or future estimations.

Question 2

Prediction is a statistical process that finds the way to make a design, system, or decision as effective as possible, for example, finding the values of controllable variables that determine maximal productivity or minimal waste.

Accepted Answer

Prediction involves estimating future outcomes based on patterns in data, while the description provided refers to optimization, which is the process of making a system or design as effective as possible by finding the optimal values of controllable variables.

Question 3

Classification assigns records to one of a predefined set of classes.

Accepted Answer

Classification is the process of categorizing data into predefined classes or categories.

Question 4

Affinity grouping determines which things go together.

Accepted Answer

Affinity grouping is a technique used to categorize or group things that are similar or have common traits. It is used to identify patterns and relationships between items.

Question 5

Analysis paralysis occurs when the user goes into an emotional state of overanalysis (or overthinking) a situation so that a decision or action is never taken, in effect paralyzing the outcome.

Accepted Answer

Analysis paralysis is a real phenomenon that occurs when people get so stuck in analyzing a situation that they become unable to make a decision or take action. This can happen in any number of situations, from trying to choose the perfect restaurant to planning a career change. Ultimately, it is not helpful and can hinder progress or success.

Question 6

Clustering assigns records to one of a predefined set of classes.

Accepted Answer

Clustering is a method of unsupervised learning where records are grouped together based on their similarity, without any predefined set of classes. Instead, clustering algorithms identify clusters based on patterns in the data, and assign records to these clusters accordingly.

Question 7

Infographics can present the results of large data analysis looking for patterns and relationships that monitor changes in variables over time.

Accepted Answer

Infographics are often used to present data analysis results and can be used to show patterns and relationships that change over time in variables.

Question 8

Web mining analysis describes technologies that allow users to see, or visualize, data to transform information into a business perspective.

Accepted Answer

The answer of Web mining analysis describes technologies that allow...

Question 9

Association detection occurs when the user goes into an emotional state of overanalysis (or overthinking) a situation so that a decision or action is never taken, in effect paralyzing the outcome.

Accepted Answer

Association detection refers to identifying patterns or relationships between variables in data, not related to emotional states or decision paralysis.

Question 10

Data-mining tools use a variety of techniques to find patterns and relationships in large volumes of information that predict future behavior and guide decision making.

Accepted Answer

This statement is true. Data-mining tools analyze data using algorithms to find patterns and relationships that can be used to predict future behavior and help guide decision making.

Question 11

Estimation determines values for an unknown continuous variable behavior or estimated future value.

Accepted Answer

Estimation involves predicting or determining the value of an unknown continuous variable, either by analyzing available data or making assumptions based on past behavior. This can be used to estimate future values or trends in the variable.

Question 12

Advanced analytics processes and manages algorithms across many machines in a computing environment.

Accepted Answer

The answer of Advanced analytics processes and manages algorithms across...

Question 13

Data artist is a business analytics specialist who uses visual tools to help people understand complex data.

Accepted Answer

A data artist is a business analytics specialist who uses visualization tools to help people understand complex data.

Question 14

A data miner is a business analytics specialist who uses visual tools to help people understand complex data.

Accepted Answer

A data miner is a specialist who uses statistical software or techniques to analyze data and generate useful information from it, not specifically through visual tools.

Question 15

Infographics (information graphics) display information graphically so it can be easily understood.

Accepted Answer

Infographics are designed to present complex information in visual and easy-to-understand formats. They use a combination of text, images, graphs, and charts to display data and communicate ideas.

Question 16

Regression is a prediction based on time-series information.

Accepted Answer

Regression is a statistical method used to analyze the relationship between one or more independent variables (also known as predictors or inputs) and a dependent variable (also known as the response or output). It can be used for prediction, but it is not exclusively based on time-series information.

Question 17

Classification segments a heterogeneous population of more homogeneous subgroups.

Accepted Answer

The answer of Classification segments a heterogeneous population of more...

Question 18

Estimation determines which things go together.

Accepted Answer

Estimation is the process of finding an approximate value or quantity, while determining which things go together is typically related to classification or clustering.

Question 19

Clustering segments a heterogeneous population of more homogeneous subgroups.

Accepted Answer

Clustering is a process of grouping together individuals or objects that are similar to each other in some way, while also being different from those in other groups. This results in a heterogeneous population being divided into more homogeneous subgroups.

Question 20

Optimization is a statistical process for estimating the relationships among variables.

Accepted Answer

Optimization is a mathematical process for finding the best solution among a set of possible choices or options, by maximizing or minimizing a given objective function, without necessarily involving statistical estimation of relationships among variables.

Quiz 8: Understanding Big Data and Its Impact on Business