Exam 4: Data Analysis and Visualization

In which of the following cases will K-means clustering fail to give good results? 1) Data points with outliers 2) Data points with different densities 3) Data points with nonconvex shapes

Common use cases for data visualization include?

In descriptive statistics, data from the entire population or a sample is summarized with ?

How many main statistical methodologies are used in data analysis?

The goal of business intelligence is to allow easy interpretation of large volumes of data to identify new opportunities.

Which of the following is false?

Text Analytics, also referred to as Text Mining?

Which method shows hierarchical data in a nested format?

________ Programming language is dialect of S.

What is true about Data Visualization?

Data visualization is also an element of the broader _____________.

The branch of statistics which deals with development of particular statistical methods is classified as

Which of the following is true about regression analysis?

Data Analysis is defined by the statistician?

To find the minimum or the maximum of a function, we set the gradient to zero because:

Which of the following plots are often used for checking randomness in time series?

Data can be visualized using?

Which of the following is tool for checking normality?

Which of the following techniques can not be used for normalization in text mining?

Which is used to find the factor congruence coefficients?