Statistical Analysis with Software Application

CS 6264 Statistical Analysis with Software Application

___________ uses artifacts to present data visually.	data visualization Correct
_____________ includes identifying groups of data record.	Cluster analysis Correct
_____________ is rated as the number one business analytics software.	Rapid miner Correct
“All models are wrong but  some  are useful “	George  E. P. Box Correct
A  bell shaped curve that is symmetric about a vertical  line.	normal distribution Correct
A bell-shaped distribution that is symmetric about a vertical line?	normal Correct
A distribution where large distribution are displayed.	Grouped frequency distribution Correct
A frequently used method as it enables binary variables, sum polytomous variable to be modelled.	logistic regression Correct
A matrix that has the same number of rows and columns is called	square Correct
A negative correlation exists when___________.	x increases y decreases Correct
A network purpoting to describe family memberships.	network topology Correct
A new phenomenon for the explosion of _________data	interaction Correct
A positive z-score means that the score is	Higher than the mean Correct
A score of 50 lies 2 standard deviations above a mean of 30.What is the value of the standard deviation?	10 Correct
A special type of function where the domain is a  set of consecutive integers.	sequence Correct
A survey of 100 consumers said that the price charged for a kilo of rice could be approximated by a normal distribution with a mean of 35 and a standard deviation of 4.How many are less than 39?	84 Correct
A survey of 100 consumers said that the price charged for a kilo of rice could be approximated by a normal distribution with a mean of 35 and a standard deviation of 4.How many of them lie between 27 and 43?	95 Correct
Addition and subtraction of matrices only is possible if  two are more matrices.	Have same sizes. Correct
Addition and subtraction of matrices only is possible if two are more matrices.	Have same sizes. Correct
A distribution with 4 modes is said to be a _________distribution.	multimodal Correct
All representations are ________	imperfect Correct
An example of an abstract computer.	Turing machine Correct
Another term for an empty set.	null Correct
Another term for text analytics.	Another term for text analytics. Correct
Any way to get new expressions from old ones.	inference Correct
Aperfect positive correlation coefficient is equal to	1 Correct
Apositive z-score means that the score  is	Higherthan the mean Correct
AUC means___________.	Area Under the Curve Correct
Data involving two variables are called _________data.	bivariate Correct
Data involving two variables.	bivariate Correct
Earlier name for data science.	datalogy Correct
Empirical rule for a normal distribution that is 2 standard deviations above and below the mean is ________% of data.	95 Correct
Empirical rule for a normal distribution that is 3 standard deviations above and below the mean covers ______% of the data.	99.7 Correct
Exabyte means ________bytes	billionbillion Correct
He coined the term “analysis of algorithms”.	Donald Knuth Correct
He pointed out that until 2003 ,all of mankind had generated just 5 exabytes of data	Eric Schmidt Correct
He proposed the use of a penalized likehood function.	Firth Correct
He coined the term “analysis of algorithms”.	DonaldKnuth Correct
He said that “ In mathematics the art of proposing a question  must be held of higher value than solvingit”.	GeorgCantor Correct
How many bytes of data are generated every two days in today's world?	5 exabytes Correct
If  in a distribution all scores are distinctthen_____________.	thereis no mode. Correct
If A= { x/x is a distinct letter in the word "MATHEMATICS"} AND B={x/x is a distinct letter in the word "STATISTICS"} then their intersection is	{A,C,I,S,T} Correct
If A={ 2,3} B={4,5},which of the following is a Cartesian product of the two sets?	{ (3,4) (3,5) (2,4 ) {2,5) } Correct
If R= { (3,3), (3,6), (5,5),(5,10),(6.12)} is a binary relation in R which the domain is	{3,5,6} Correct
If the standard deviation of a distribution is 3.5, the variance is	12.25 Correct
If there are 101 scores the median is equal tothe _____ranked score.	51 Correct
If there are 103 scores the median is equal to the _____ranked score.	52nd Correct
Ifthe standard deviation of a distribution is 3, the variance is	9 Correct
In 2,4,4,4,5,5,6,8,9 the range is	7 Correct
In the equation of the regression line represented by Y= 1.24 X + 6.9 if X=2 then Y =?	9.38 Correct
In α =babaa  β  =a^6b^5bb, what is the length of the concatenation of the two strings?	18 Correct
is an important part of a broader_____________.	computational complexity theory Correct
It corresponds to the case where the dependent variable has more than 2 categories.	multinomial logit model Correct
It does NOT require the assumption that the parameters are normally distributed.	profile likehood Correct
It enables the performance of a model and enables a comparison to be made with other models.	ROC Correct
It extracts meaningful numerical indices from information and make it available to statistical and	Text analytics Correct
It has the goal of discovering useful information to support decision making.	data analysis Correct
It includes identifying groups of data records	cluster analysis Correct
It includes identifying groups of data records.	cluster analysis Correct
It involves a commitment in viewing the world in terms of individual entities and relations.	logic Correct
it is  a perfect software  for machine learning.	orange Correct
It is  popular among financial data analysts.	Knime Correct
It is a collection of machine learning algorithms for data mining task.	WEKA Correct
It is a free software programming language.	R-programming Correct
It is a language that we say things about the world.	Medium of human expression. Correct
It is a method for discovering patterns in large data sets.	Data Mining Correct
It is a module in rapid miner that considers the workflow.	studio Correct
It is a perfect software which is written in Python computing language.	Orange Correct
It is a powerful tool that shows the network of data.	Knime Correct
It is a process  of finding the computational complexity of algorithms.	analysis of algorithms Correct
It is a process that goes on internally while most things it wishes about exists only externally.	reasoning Correct
It is a theoretical classification that estimates and anticipates the increase increase in running time for algorithms.	run time analysis Correct
It is a variety of  formal calculation typically deduction.	Intelligent Reasoning Correct
It is a variety of formal calculation typically deduction.	Intelligent Reasoning Correct
It is used for prototyping in Rapid miner.	studio Correct
It is used in organization’s strategic and tactical business decision making.	business intelligence Correct
It is used to discover patterns in large data sets	Data mining Correct
It is used to enable an entity to determine consequences by thinking rather than acting.	Knowledge Representation Correct
It makes complex data more understandable and usable.	data visualization Correct
It offers a  way to examine trends from collected data and derive insights from it.	Business Intelligence Correct
It refers to the degree of relationship between two variables?	Correlation Correct
It relates the length of an algorithm to the number of storage location it uses.	space complexity Correct
It relates the length of an algorithm’s input to the number of steps it takes.	time complexity Correct
It sees a set of prototypes in particular prototypical diseases to be matched against the case at hand.	INTERNIST Correct
It transforms data into actionable intelligence for business purposes.	Business Intelligence Correct
It views the world in terms of attributes object value triples.	rule based Correct
It views the world in thinking of prototypical objects.	frame Correct
It expands available data enormously since there is so much more text being generated than numbers.	Text mining Correct
It is a process  of finding the computational complexity of algorithms.	analysis of algorithms Correct
It refers to well based theories  and sound business judgement.	DataScience Correct
It relates the length of an algorithm to the number of storage location it uses.	spacecomplexity Correct
It relates the length of an algorithm’s input to the number of steps it takes.	timecomplexity Correct
It shows a high correlation between the incidence of flu and searches about flu on google.	GoogleFlu trends Correct
KR as a _________is a substitute for the thing itself.	surrogate Correct
KR is a set of __________commitments.	ontological Correct
KR means __________________________.	Knowledge Representation Correct
Matrix B is	invertible Correct
Null strings are indicated by	λ Correct
On an examination given to 1000 students, Jef’s score of 80 was higher than the score of 480 students who took the exam. What is the percentile for Jef’s score?	48th Correct
Onan examination given to 1000  students,Jef’s score of 80 was higher than the score of 480 students who took the exam.What is the percentile for Jef’s score?	48 Correct
PAWmeans____________.	PredictiveAnalytics World Correct
Positive correlation means that_______________.	as x increases y also increases and vice versa Correct
Primarily used for data pre-processing.	Knime Correct
Refers to using tools of statistics to present data visually.	data visualization Correct
The _______value is the weighted average of the value the random variable may assume.	Expected Correct
The area of the standard normal curve to the right of z=0.82 is _______.	0.206 Correct
The classification table that XL Stat can display.	confusion matrix Correct
The constant multiplicative factor in which algorithms are related are_______ constants.	hidden Correct
The creation of data from varied sources and its qualification into information.	datafication Correct
The developer of farmville, a famous game in the internet.	Zynga Incorporated Correct
The equation of the _______line predicts the value of Y given X.	Regression Correct
The following are abstract notions EXCEPT	casualty Correct
The following are artifacts used in data analysis EXCEPT:	ANOVA Correct
The following are data mining techniques EXCEPT:	Collection Correct
The following are distinct roles that KR plays EXCEPT	Medium for pragmatically diligent interpretation Correct
The following are large inputs EXCEPT	Big beta notation Correct
The following are softwares used in  data mining  EXCEPT	SPSS Correct
The following are the 3V's of big data EXCEPT	veracity Correct
The following processes are used in data analysis EXCEPT:	collecting Correct
The following provided inspirations of what constitutes intelligent reasoning EXCEPT	Sociology Correct
The function describing the performance of an algorithm is usually an upper bound determined from ______inputs.	worst case Correct
The goal is to transform raw data into understandable business information.	Data mining Correct
The integral of all the values of a random variable in a probability density function is equal to______.	One Correct
The intersection of the two sets A={ 2,3} B={4,5} is a	null set Correct
The method of correlation used for ranked score is ________.	Spearman rho Correct
The method that does not require the assumption that parameters are normally distributed.	profile likehood Correct
The most common functions used to link probability to the explanatory variables are the LOGIT model and ________model.	PROBIT Correct
The most widely used continuous probability distribution.	Normal Correct
The normal distribution with a mean of 0 and standard deviation of 1.	Standard Correct
The number that occurs most frequently is called________.	Mode Correct
The process of inspecting,cleansing,transforming and modelling data with the goal of discovering useful information.	data analysis Correct
The product of a 2x5 and 5x3 matrices is a ______matrix	2x3 Correct
The proportion of a well defined positive event is called _________________.	sensitivity Correct
The proportion of a well-defined classified positive events.	sensitivity Correct
The range in  R={ (3,3), (3,6), (5,5),(5,10),(6.12)} is a binary relation in R is	{3,5,6,10,12} Correct
The score NOT easily affected by extreme values.	Median Correct
The sets  A= { x/x is a distinct letter in the word "MATHEMATICS"} and B={x/x is a distinct letter in the word "STATISTICS"} , the two sets are	joint Correct
The symbol used to indicate strings with no elements.	λ Correct
The two sets If A={ 2,3} B={4,5} are said to be	disjoint Correct
Thecreation of data from varied sources and its quantification into information.	Datafication Correct
Theexplosion of _______data is the main reason why every 2 days 5 exabytes of dataare generated.	interaction Correct
Thenumber that occurs most frequently is called________.	Mode Correct
Theperson who said that “ The future is not google-able”.	WilliamGibson Correct
There are how many data mining techniques?	7 Correct
Thescore easily affected by extreme values is the _________.	Mean Correct
Thescore NOT  easily affected byextreme  values.	Median Correct
These are the data skills that a good data scientist need to cultivate EXCEPT	speaking Correct
To estimate the parameters of the model ,the ________function is maximized.	likehood Correct
What conditions must be satisfied in the development of a  probability function for a discrete random variable?	a and b Correct
What is a great example of data product?	google maps Correct
What is the process of deriving useful information from text?	Text Analytics Correct
What is the size of the product of a 5x 6 and a 6x 8 matrices?	5x 8 Correct
What is the value of the mean if a score of 110 is 3 standard deviation above the mean?	95 Correct
What is the value of the mean in a normal probability density function?	50 Correct
What is the value of the standard deviation in a standard normal distribution?	1 Correct
What is value of quartile 3 in 2,4,4,4,5,5,6,8,9 ?	7 Correct
What percent of data will lie within 2 standard deviation of the mean?	95 Correct
What programming language doe Orange use?	python Correct
What programming language is used in Rapid miner?	Java Correct
What type of text are processed in Text analytics?	unstructured Correct
Whatis the size of the product of a 5x 6   and a 6x 8 matrices?	5x8 Correct
Which function provides the value of a function at any particular value of x but does NOT directly give the probability of the random variable?	Probability density Correct
Which is NOT a basic representation technology?	graph Correct
Which is NOT a component of KR?	it adheres to the function Correct
Which is NOT a KR technology?	roles Correct
Which is NOT a value of r ?	1.02 Correct
Which is Not an interaction data?	data base Correct
Which is primarily written in C and in Fortran?	R-programming Correct
Which of the  following  does NOT use continuous distribution?	hypergeometric Correct
Which of the following belong to the GLM?	logistic Correct
Which of the following data mining techniques is predictive?	classification Correct
Which of the following is a continuous distribution?	Chi-square Correct
Which of the following is a discrete distribution?	Hypergeometric Correct
Which of the following is a predictive data mining technique?	regression Correct
Which of the following is NOT a data mining tool?	Python Correct
Which of the following is NOT a goal in data mining?	collecting data Correct
Which of the following is NOT a method used in data analysis?	Statistics Analytics Correct
Which of the following is NOT a module in rapid Miner?	loop Correct
Which of the following is TRUE when a distribution is normal?	The correct answers are: Mean, Median, Mode Correct
Which of the following is TRUE?	A + B = B+ A Correct
Which of the following is used as a method for Correlation?	Pearson r Correct
Which of the following pertains to predictive data mining technique?	Regression Correct
Which of the following type of text  is processed in text analytics?	unstructured Correct
Which of the matrices is singular?	A Correct
Which pair belongs to the same family of models called GLM? i) logistic    ii) linear regression    iii.) multinomial regression     iv)probability	I and ii Correct
Whichof the following is TRUE?	A +B = B+ A Correct
Whichof the following statements is TRUE?	Q2=median Correct
Whichof the matrices is singular?	A Correct