Data Analysis MATH-6200 exam answers

The following are elements in an analytic plan EXCEPT

graphs 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

variety
veracity Correct
velocity
volume

The following processes are used indata analysisEXCEPT:

collecting Correct
inspecting
cleansing
transforming

The following provided inspirations of what constitute intelligent reasoning EXCEPT

philosophy Correct

The following provided inspirations of what constitutes intelligent reasoning EXCEPT

Biology
Statistics
Psychology
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 visualization
text analytics
Data mining Correct
business intelligence

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 What is the size of the product of a 5x 6 and a 6x 8 matrices?

singleton
singular
null set Correct
non singular

The major outcome of correlation.

prediction Correct

The method of correlation used for ranked score is ________.

Spearman rho Correct

The method that does NOT require t he assumption that the parameters are normally distributed.

profile link
profile
identity likehood
profile likehood Correct

The method used to iteratively find a solution to a multinomial legit model.

Newton-Raphson algorithm Correct
Newtonian algorithm
Kun's alhorithm
Baye's algorithm

The middle-most value in a ranked list of numbers.

median Correct

The most common function used to link probability to explanatory variables

logit model Correct

The most common functions used to link probability to the explanatory variables are the LOGIT model and ________model.

LEGIT
LOGET
PROBET
PROBIT Correct

The most commonly used continuous probability distribution

normal Correct

The most frequent score

mode Correct
standard deviation
median
mean

The most widely used continuous probability distribution

binomial distribution
poison distribution
multinomial distribution
normal probability distribution Correct

The normal distribution with a mean of 0 and standard deviation of 1.

Standard Correct
kurtic
Skewed
skewedto the right

The number that occurs most frequently is called________.

Mode Correct
median
range
mean

The person who said that “ The future is not google-able”.

Georg cantor
William Gibson Correct
Eric Schmidth
D J Patil

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-classified negative event.

specificity Correct
identity
clarity
sensitivity

The proportion of a well-defined classified positive events.

velocity
clarity
volume
sensitivity Correct

The quantification of data into information.

Datafication 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.

range
mean
mode
Median Correct

The setsA= { 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

Equal (not sure) Correct

The standard deviation for the datain2,4,4,4,5,5,6,8,9

217 Correct
216
218
215

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

joint
adjoint
equal
disjoint Correct

The value of X in the regression equation Y= 1.24 X + 6.9 if Y=13.1 is

5 Correct

There are how many data mining techniques?

7 Correct

Thescore easily affected by extreme values is the _________

median
range
Mean Correct
mode

These are the data skills that a good data scientist need to cultivate EXCEPT

Communication
Math and Stats
coding
speaking Correct

To estimate the parameters of the model ,the ________function is maximized

multinomial
likehood Correct
sensiivity
specificity

Two of the most widely used discrete probability distribution

poisson and binomial Correct

What conditions must be satisfied in the development of a probability function for a discrete random variable?a must be nonnegativebsum of the probabilities for each value must be equal to 1c may assume any valuedassumes specific values

b and c
a and b Correct
a and d
a and c

What does GLM means?

Generalized Linear Mode
Generalized Linear model Correct
General Line Mode
General Linear Model

What does ROC mean?

Receptor Operating Characteristics
Receiver Operating Characteristics Correct
Receiver Operating Character
Receiver Operating Channel

What increases data volume?

velocity Correct

What is a data structure that has a fixed size?

dynamic
nonlinear
linear
static Correct

What is a great example of data product?

google navigation
google navigation
google drive
google maps Correct

What is an organized collection of information and set of information used to manage that operation?

ML
data science
data structure
ADT Correct

What is the correct meaning of ADT?

Adequate Data Type
Adequate Data Tautology
Abstract Data Type Correct
Abstract Data Topography

What is the earlier name fordata science?

dataology
datatology
datalogy Correct
datology

What is the focus ofdata science?

collection of data
manipulate data efficiently and effectively Correct
statistical computation
organization of data

What is the mean for a standard normal distribution?

1
2
5
0 Correct

What is the process of deriving useful information from text?

Text Analytics Correct
Data Mining
Statistics Analytics
Business Intelligence

What is the shape of a normal probability distribution?

bell-shaped Correct
assymetrical
skewed
leptokurtic

What is the value of the mean and standard deviation in a normal probability density function

mean-50 s=5 Correct

What is the value of the mean if a score of 110 is 3 standard deviation above the mean?

90
95 Correct
85
91

What is the value of the mean in a normal probability density function?

5
1
50 Correct
10

What is the value of the standard deviation in a standard normal distribution?

2
1 Correct
0
5

What is the value when it is 2 standard deviations above the mean in a normal probability distribution?

60 Correct
65
70
55

What is value of quartile 3 in2,4,4,4,5,5,6,8,9 ?

7 Correct
5
8
6

What percent of data will lie within 2 standard deviation of the mean?

99
68
95 Correct
90

What programming language doe Orange use?

Cobol
JAVA
Fortran
python Correct

What programming language is used in Rapid miner?

Java Correct

What range of values 3 SD below and above the mean in a normal distribution if the mean is 10 and standard deviation is 2?

5-15
4-16 Correct
10-14
8-14

What range of values lie between 3 standard deviations above and below the mean if the mean is 80 and the standard deviation is 3?

71-89 Correct
70-89
72-89
71-88

What type of text are processed in Text analytics?

unstructured Correct

Which belong to the GLM family?

logistic only
linear only
exponential only
logistic and linear 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 an example of a discrete random variable?

number of book Correct

Which is NOT a basic representation technologies?

graph Correct

Which is NOT a basic representation technology?

semantic net
frame
graph Correct
logic

Which is NOT a component of KR?

set of inferences that represent sactions
it adheres to the function Correct
set of inferences that it recommends
fundamental conception

Which is NOT a correct correlation Coefficient?

1.2 Correct

Which is NOT a KR technology?

semantic nets
roles Correct
logic
frames

Which is NOT a measure of central tendency?

mean
mode
median
standard deviation Correct

Data Analysis

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