Package deal of DSCI Combined Exam Correctly Answered.

Describe the quantitative analysis approach - correct answer -the process of analyze information to make final decision. Include unpredictable things that affect the decision-making process (weather, state, federal legislation Understand the application of qua...

Descriptive statistics - correct answer Collect and describe data Inferential Statistics - correct answer Analyze data and make decisions or estimates based on the information obtained Simple Random Sample - correct answ...

What is BI/BA? - correct answer The term BI/BA can be used interchangeably. BI is an umbrella term that combines architecture, tools, databases, analytical tools, applications, and methodologies. It is content free expression (means different things to different ...

Descriptive analysis - correct answer Summarizing characteristics of a data set, no interpretation Exploratory analysis - correct answer Looking for trends, patterns, or relationships in data, often used for future hypothes...

BI represents a bold new paradigm in which the company's business strategy must be aligned to its business intelligence analysis initiatives. T/F - correct answer FALSE The very design that makes an OLTP system efficient for transaction processing makes it ...

Nominal Data - correct answer Data which consists of names, labels, or categories. Interval Data - correct answer differences between values can be found, but is NO absolute ZERO. Examples: temperature F, time. Ordinal D...

The 3Vs in the definition of Big Data stand for: A: Volume, Value, Veracity B: Volume, Variety, Value C: Volume, Variety, Velocity - correct answer C: Volume, Variety, Velocity The four stages in Big Data adoption identified by the 2012 IBM/University of ...

In the opening vignette, the architectural system that supported Watson used all the following elements EXCEPT - correct answer a core engine that could operate seamlessly in another domain without changes. In text mining, tokenizing is the process of - correc...

What are the 2 areas of statistics? - correct answer Descriptive and Inferential What does descriptive statistics do? - correct answer Describes the sample then quits. The sample average is called a - correct answer ...

statistics - correct answer a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters Why do we use statistics in business? - correct answer ...

glimpse() - correct answer A little glimpse of our dataframe. It's somewhat like head() but it displays column headers in a lefthand column rather than as horizontal headers. as_factor - correct answer nameless_data %&gt...

Underfitting in classification - correct answer Increased number of neighbours means that more observations are influencing the classification. This smooths out the boundaries between each class, so the model isn't influenced enough by the training data. Un...

Descriptive question - correct answer Asks about summarized characteristics of a data set without interpretation (report a fact) Exploratory question - correct answer Asks if there are patterns, trends, or relationships wit...

What is the first and last step of the modeling process? - correct answer 1. Define the problem, what is the objective? 2. Implement and evaluate the results. What are the recommendations? List 2 out of the three models in chapter 1 - correct answer ...