Data Modeling

If correlation value is 0.4, then what is correlation for that?

• No correlation

• Negative correlation

• Positive correlation

• None

A data set can have more than one median.

• True

• False

Which of the following is a measure of variability?

• Mean

• Median

• Mode

• Standard deviation

The measure of dispersement in statistics is called ______

• Standard Deviation

• 
  Mode

• Mean

• Median

What is relationship between two variables called?

• Relationship

• Correlation

• Interrelationship

• Norelation

what is the method used for graphically depicting groups of numerical data through their quartiles: minimum, first quartile, median, third quartile, and maximum?

• Box plot

• Heat map

• Scattered plot

• Cat in the box

Which of the following statements about built-in database functions is correct?

• Built-in database functions must be called from a python

• Built-in database functions may increase network bandwidth consumed

• Built-in database functions reduce the amount of data that is retrieved.

• Built-in database functions may increase processing time.

The process of constructing a mathematical model or function that can be used to predict

or determine one variable by another variable is called

• Regression

• Correlation

• residual

• outlier plot

In the regression equation Y = 21 - 3X, the slope is

• 21

• -3

• 3

• -21

The best fit line method for data in Linear Regression?

• • Least Square Error

• • Maximum Likelihood

• • Logarithmic Loss

• • Both A and B