Madanswer Technologies Interview Questions Data|Agile|DevOPs|Python - Recent questions in Advanced Statistics Probability

_____________ is an example of Multivariate analysis in which relationship exists between a dependent variable and independent variable/variables.

Sun, 13 Feb 2022 23:38:54 +0000

_____________ is an example of Multivariate analysis in which relationship exists between a dependent variable and independent variable/variables.

A. Partial Least Squares Regression

B. Cluster analysis

C. None of the options

What is Kernel density estimation?

Sun, 13 Feb 2022 23:38:02 +0000

What is Kernel density estimation?

A. It is the implementation of parametric density estimation

B. It is the implementation of non – parametric density estimation

Principal component analysis reduces ____________.

Sun, 13 Feb 2022 23:36:29 +0000

Principal component analysis reduces ____________.

A. Large number of uncorelated variables

B. Large number of corelated variables

C. Both the options

Probability mass function is also known as ________.

Sun, 13 Feb 2022 23:35:29 +0000

Probability mass function is also known as ________.

A. Mass function

B. Probability density function

C. Simple mass function

D. Statistical mass function

In box kernel density estimation, __________.

Sun, 13 Feb 2022 23:34:11 +0000

In box kernel density estimation, __________.

A. The histogram is centered over the data points

B. The histogram is decentralized

C. The histogram is decentralized over several data points

D. None of the options

What are the characteristics of Markov process?

Sun, 13 Feb 2022 23:33:16 +0000

What are the characteristics of Markov process?

A. It is a Random process

B. The past event does not affect the future event

C. Both the options

What is density estimation?

Sun, 13 Feb 2022 23:32:16 +0000

What is density estimation?

A. It estimates only probability

B. It estimates probability density function

C. It is a type of point estimation

D. None of these

What is prior probability?

Sun, 13 Feb 2022 23:31:21 +0000

What is prior probability?

A. Probability distribution done with a lack of evidence

B. Probability distribution done with sufficient evidence

Which estimation can be represented by a single value?

Sun, 13 Feb 2022 23:30:26 +0000

Which estimation can be represented by a single value?

A. It is difficult to represent estimations as single value

B. Interval estimation

C. Point estimation

D. All the options mentioned

Lurking variable remains _________________.

Sun, 13 Feb 2022 23:29:04 +0000

Lurking variable remains _________________.

A. Not defined

B. Present during the analysis

C. Omnipresent in the analysis

D. Hidden during the analysis

Least number of coordinates required to showcase a point is ______________.

Sun, 13 Feb 2022 23:27:23 +0000

Least number of coordinates required to showcase a point is ______________.

A. Dimension

B. Co-ordinates

C. Multivariate analysis

D. Bivariate analysis

What is posterior probability?

Sun, 13 Feb 2022 23:26:17 +0000

What is posterior probability?

A. The conditional probability of the event after the evidence is taken into consideration!

B. The probability distribution that is done as a lack of evidence

C. Both the options

D. None of the options

What are the features of multivariate random variable?

Sun, 13 Feb 2022 23:25:11 +0000

What are the features of multivariate random variable?

A. It is a set of unknown variables

B. The variables have not occurred yet

C. Both the options

What is the drawback of using Kernel density estimation’s Histogram method?

Sun, 13 Feb 2022 23:24:01 +0000

What is the drawback of using Kernel density estimation’s Histogram method?

A. It is independent of the bin width

B. Plot is discontinuous

C. Plot is not smooth

D. Plot is over smooth

Stochastic variables are also known as ___________.

Sun, 13 Feb 2022 23:22:15 +0000

Stochastic variables are also known as ___________.

A. Random variables

B. Variables

C. Both the options

D. None of the options

The least number of coordinates required to showcase a point is _________.

Sun, 13 Feb 2022 23:21:10 +0000

The least number of coordinates required to showcase a point is _________.

A. Multivariate analysis

B. Co-ordinates

C. Dimension

D. Bivariate analysis

A pattern such as a group or a trend in the data table cannot be studied using Multivariate data analysis.

Sun, 13 Feb 2022 23:20:07 +0000

A pattern such as a group or a trend in the data table cannot be studied using Multivariate data analysis.

A. True

B. False

What is done when a new data in the sub Interval is added?

Sun, 13 Feb 2022 23:18:45 +0000

What is done when a new data in the sub Interval is added?

A. Bin is inserted from the bottom

B. One bin is added on the top

C. Height of the previous bin is doubled

D. Height of the bin is increased

If the area under the PDF curve is zero, then __________.

Sun, 13 Feb 2022 23:17:30 +0000

If the area under the PDF curve is zero, then __________.

A. Probability = 1

B. Probability = 0

C. Probability = not defined

D. Data insufficient

Dependent variables refer to those variables __________.

Sun, 13 Feb 2022 23:16:02 +0000

Dependent variables refer to those variables __________.

A. Whose variation is never analyzed

B. Whose variation is analyzed

C. Both the options

What are the features of a multivariate random variable?

Sun, 13 Feb 2022 23:14:39 +0000

What are the features of a multivariate random variable?

A. It is a set of unknown variables

B. The variables have not occurred yet

C. Both the options

Multivariate data analysis is an application of ________.

Sun, 13 Feb 2022 23:13:14 +0000

Multivariate data analysis is an application of ________.

A. Dimension reduction

B. Multivariate Statistics

C. Categorizing Variables

D. All the options

Use of only one variable to describe data is known as _____________.

Sun, 13 Feb 2022 23:11:54 +0000

Use of only one variable to describe data is known as _____________.

A. Multivariate data analysis

B. Univariate data analysis

C. Infinite data analysis

D. Bivariate data analysis

What is multivariate statistics?

Sun, 13 Feb 2022 23:10:22 +0000

What is multivariate statistics?

A. Simultaneous observations on several variables

B. Simultaneous analysis on several variables

C. Finding relation between several variables

D. All the options

Independent variables refer to those variables _________.

Sun, 13 Feb 2022 23:09:06 +0000

Independent variables refer to those variables _________.

       A. Which acts as an input in the experiment

       B. Whose values are not related to the experiment

       C. Whose values are known during the experiment