5. Quantitative Techniques and Analytics Flashcards
Which one is a one-dimensional diagram?
Bar diagram
Another name for a cumulative frequency polygon is:
Ogives
___________ include scales wherein the researchers ask the respondents for their relative preference between two or more objects.
Comparative scales
The broader classification of tables is into__________ types.
Two
__________ is the scale that contains absolute or true zero, which implies the absence of any trait.
Ratio
Histogram can be drawn only for:
Continuous frequency
Another name for a sector diagram is a:
Pie chart
What is the shape of a pie chart?
Circle
A polygon can be drawn from a:
Histogram
_____________ are the commonly used graphical presentations for the set of statistical distributions.
Frequency polygons
Ogives can help locate graphically the:
Median
The histogram is an efficient means for representing:
Median
In _________ scale, the variables are named or labelled in no specific order. This is the measurement scale in which numbers are assigned to things, beings or events to classify or identify or label them.
Nominal
Bar diagram is suitable for presenting:
Single variable
In ______________ approach of ranking scale, the respondents are asked to rank their choices according to their preferences.
Rank order
Mode = 3 Median−________ Mean
2
The sum of deviation of value from their mean is equal to:
0
Which of the following is not a common measure of central tendency?
Range
The mode of the numbers 8, 8, 10, 8, 10, 15, 15, 15, 10 is
8 and 10
Calculate Median from the following data set: 6, 4, 2, 3, 4, 5, 5, 4
4
The sum of squares of deviations of different values from their arithmetic mean is
Minimum
Which of the following is the geometric mean of 2, 4, and 8?
4
Which of the following is true?
Notation for mode is Z
Calculate median from the following data set: 5, 5, 11, 9, 8, 5, 8
8
The positional measure of central tendency
Median
The average of all the observations in a data set is known as:
Mean
If each item is reduced by 9, Arithmetic Mean is
Decreased by 9
Which of the following is the value that most often occurs in a dataset?
Mode
Which of the following is the mode (Z) when the following data is converted into an ordinary frequency table? 2 students get less than 4 marks 5 students get less than 8 marks 13 students get less than 12 marks 16 students get less than 16 marks 20 students get less than 20 marks
Z = 10
Q2 is ____________.
Median
Quartiles divide the entire set into ____________ equal parts.
Four
Quartiles are the values that divide a list of numerical data into ____________ quarters.
Three
The measures of dispersion can be used to study the dispersed values near the____________value.
Mean
The ____________can be calculated by dividing SD with the mean of the series.
Coefficient of SD
The ____________ is half of the distance between the third and the first quartile.
Quartile deviation
The average of the squared differences from the Mean is called ____________.
Variance
The coefficient of ____________ is a measure of relative variability.
Variation
An ____________ measures of dispersion contain the same unit as the original data set.
Absolute
Measures of dispersion are also known as the averages of the ____________.
‘Second order’
____________ represents the difference between the highest value and the lowest value in a data series.
Range
The ____________ is defined as a statistical measure that is used to calculate the average deviation from the mean value of the given data set.
Mean deviation
Lower quartile is denoted by ____________.
Q1
The probability of the intersection is called the_________probability.
Joint
Association with_________contributed to very slow and sporadic growth of probability theory as a mathematical discipline.
Gambling
The _________ had its origin in gambling and games of chance.
Theory of probability
In the binomial distribution, each trial is known as a _________ trial.
Bernoulli
Blaise Pascal and Pierre de Fermat emphasised the development of_________and probability theory.
Combinations
A_________for an event E is said to be the set of all outcomes which are not included in a particular set of outcomes for event E.
Compliment
A probability distribution is a summary of all probabilities for a value of _________variable.
Random
When the outcomes in a permutation can be repeated it can be referred to it as permutations with _________.
Repetition
The specific multiplication rule is simple but it is applicable only when two events are _________.
Independent
_________ is another event that occurs as a result of combining other events.
Union
Businesses work in an_________environment.
Uncertain
The_________distribution function is used when there are random variables occurring or random events occurring at a certain rate over some time.
Poisson
In probability theory, we have different_________rules under certain conditions namely specific rule and general rule.
Multiplication
A _________ refers to a number that exhibits the chance or likelihood that a certain event will happen.
Probability
The formula for the probability is:
Probability (P) = Favourable Outcome(s)
_______ correlation refers to the correlation between two data series in which the data is ranked.
Rank
Whenever one variable change in a particular direction, the change in another variable is _______ .
Inevitable
_______ is employed as a widely used and reliable method of analysing the linear relation between variants.
Correlation
When there is the relation between the variables, it has been said that the variables are _______ .
Correlated
A _______ correlation infers that two or more variables have a strong relationship with each other.
High
When the change in one variable results in the change in another variable in the same direction is it said to have _______ .
Positive correlation
Correlation refers to the_______ interrelatedness between two variables.
Linear
A _______ correlation implies that the variables are hardly associated.
Weak
A _______ diagram graphically presents the relation or the association without significantly, providing numerical value for comparison.
Scatter
_______ correlation is used to find the degree of the linear relationship between two variables.
Simple
When the change in one variable is in one direction but the change in another variable is just opposite to it, it is called as _______ .
Negative correlation
It is acceptable that there are various methods of establishing an association between the _______ .
Variable
Hypothesis t represents a tentative relationship between two or more ________ .
Variables
Hypothesis is a proposed explanation given for a/an ________ situation.
Observed
heprocedure to utilise test statistics to check whether a hypothesis is ________ is known as hypothesis testing.
True
A hypothesis refers to an ________ that is made in the population parameter and a sample statistic is used to verify the same.
Assumption
________ test is a part of directional hypothesis that talks not only about the relationship between two variables but also the direction of relationship.
One-tailed
A ________ statement is derived from a problem statement.
Hypothesis
________ tests which make assumptions about the parameters of the population from which a sample is derived.
Parametric
________ is used to compare the ratio of variances of two samples under study.
F-test
A hypothesis refers to an assumption that is made in the population parameter and a ________ statistic is used to verify the same.
Sample
Hypothesis is a very useful ________ to solve various research problems and issues.
Tool
Hypothesis is a specificprediction, which can be ________ .
Tested
Hypothesis testing assists the researcher in deriving ________ results, as it takes into consideration the errors due to sampling.
Realistic
hypothesis is a very useful tool to solvevarious research ________ and issues.
Problems
A ________ statement cannot bedirectly tested.
Problem
The formation of a hypothesis helps the researcher remain focused on the ________ problem.
Research
A hypothesis should be clear and specific to facilitate a deep and ________ study.
Comprehensive
A hypothesis refers to an assumption that is made in the population and a sample statistic is used to verify the same.
Parameter
A ________ refers to an assumption that is made in the population parameter and a sample statistic is used to verify the same.
Hypothesis
A researcher ________ forms a hypothesis about a problem and then tests it to check its validity by using statistical measures.
First
Both hypothesis and problem statements arise from a ________ situation.
predefined
The procedure to utilise test statistics to check whether a hypothesis is true is known as hypothesis ________ .
Testing
A hypothesis should ________ define its topic.
Clearly
A hypothesis refers to an assumption that is made in the ________ parameter and a sample statistic is used to verify the same.
Population
A researcher first forms a hypothesis about a problem and then tests it to check its ________ by using statistical measures.
Validity
Hypothesis is formulated to solve the problem by testing it with the help of various tests of ________ .
Significance
MS between columns = SS between columns/( _______ – 1)
c
In ANOVA, one type of variation occurs due to:
Chance
In two-way ANOVA, there are _______ possible null hypotheses.
Two
_______ = MS between/MS within
F-ratio
_______ is used to study and explain the amount of variation in more than two samples or data sets.
ANOVA
In a chi-square test, first the researcher finds out the expected frequency on the basis of _______ .
Distribution
Chi-squared test is used for measuring how well the observed distribution of data fits with the expected distribution of data in case of:
Independent variables
In one-way ANOVA, if the value of F-ratio lies under the limits of acceptance region:
The null hypothesis is accepted and the alternate hypothesis is rejected.
The _______ is used to determine whether a substantial difference exists between the expected frequencies and the observed frequencies in one or multiple categories.
Chi-squared test
_______ is used when a researcher wants to test the differences between groups that have been split on the basis of two attributes or independent variables or factors.
One-way ANOVA
In chi-square test for _______ , two attributes are tested to find out whether they are associated with each other.
Independence
In the formula of Chi-square test what does O signify?
Observed value
Residual variation = _______ – (SS between + SS within)
Total SS
Chief component of first-generation computer was
Vacuum Tubes and Valves
Which type of computers uses the 8-bit code called EBCDIC?
Mainframe computers
he ALU of a computer responds to the commands coming from
Control section
A hybrid computer
Resembles both a digital and analogue computer
The brain of any computer system is
CPU
Microprocessors as switching devices are for:
Fourth Generation Computers
Which of the following IC was used in third generation of computers?
SSI and MSI
UNIVAC is:
Universal Automatic Computer
What is the main difference between a mainframe and a super computer?
Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
Integrated Circuits (ICS) are related to which generation of computers?
Third generation
To produce high quality graphics (hardcopy) in color, you would want to use a/n
Plotter
The two major types of computer chips are
Logic chips and Memory chips
Computer is free from tiresome and boardroom. We call it
Reliability
Storage capacity of magnetic disk depends on?
A. tracks per inch of surface
B. bits per inch of tracks
C. disk pack in disk surface
D. All of above
Option D
A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
Buffer
The two kinds of main memory are:
RAM and ROM
The basic operations performed by a computer are
- Arithmetic operations
- Logical operations
- Storage and relative functions
ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for?
Extended Binary Coded Decimal Interchange CodeExtended Binary Coded Decimal Interchange Code
Any text or graphic that you insert in a appears at the top of every page in the document.
Header
The ________ feature helps you to automatically correct the spelling mistakes that one commits while typing.
AutoCorrect
To save the document from unauthorised access; you will use the ________ command.
Restrict Editing
Heading 1, Heading 2, Title and Strong are the in a document.
Styles
Which of the following options should be used to place the selected text or character above the normal text?
Superscript
Reema is trying to find a synonym for a word in a MS-Word document. Which option should she use?
Thesaurus
Which of the following defines the area that appears just above the bottom margin of the page?
Footer
Identify the correct path for hyperlink in MS-Word.
Insert W Links W Hyperlink
The footnote or endnote is separated from the entire text of the document by a ________ line.
Horizontal
________ provide consistent style, look and feel to the entire document.
Themes
Which of the following styles is used to make the text strong or thick?
Bold
Which of the following options helps to provide the range of the pages of the document?
Print Custom Range option
________ is a method in Microsoft Word to keep track of the alterations you make to a document.
Track Changes
Header & Footer button is located under the ____________ group of the Insert tab.
Text
Which PowerPoint view works best for adding slide transitions?
Slide Sorter view
Which key is used to start a presentation?
F5
The special effects used to introduce slides in a presentation are called
Transitions
The ____________ tab consists of the commands that let you work with slides.
Slide Show
What is the term used when you press and hold the left mouse key and move the mouse around the slide?
Dragging
To edit a chart, you can
Double click the chart object
In the context of the animations, what is a trigger?
An item on the slide that acts when clicked
The ____________ allow you to specify the appearance of the slides in the slide show.
Transition styles
___________ allows you to format a cell or range of cells based on specific conditions.
Conditional formatting
% is a/an ___________ operator.
Arithmetic operator
Which of the following is the correct path for the LOOKUP FUNCTION?
Formulas Function Lookup & Reference LOOKUP
How many types of font styles are available in MS Excel?
Four
n the syntax of the VLOOKUP function, ___________ refers to a logical value that specifies whether you want to find an exact or estimated match.
range_lookup
Both formulas and functions must be preceded by the ___________ for Excel to understand them.
Equal sign
Which of the following functions returns TRUE if all the arguments used in the function are true?
AND
___________ a worksheet refers to the process of changing the appearance of the data so that it can be more readable.
Formatting
By default, the width of a column in a worksheet is ___________ characters.
8.43
ROUND(45893.674539011567, 5) will return ___________ .
45893.67454
Which of the following tabs contains the tools to check spellings, translate words, add comments, and protect a workbook?
Review tab
Simran creates a workbook and types her name in cell A1. She noticed that the typed name also displays at one other place in the workbook. Which is this place?
Formula bar
The ___________ function returns the future value of an investment or a loan, based on a fixed interest rate and a fixed payment.
FV()
he syntax of the FV function is as follows:
=FV(rate, nper, pmt, [pv], [type])
In this syntax, nper stands for?
Total number of payments periods in an annuity
In MS Excel, the range of cells D7 to K100 is referenced as ___________ .
D7:K100
Which of the following options is used for defining the print area of a worksheet?
Margin
The Protect Workbook button is found under ___________ tab of MS Excel.
Review
Which of the following spreadsheet applications is developed by Microsoft?
MS Excel
Which of the following functions helps in adding the specified arguments?
SUM()
Which of the following options is not present in Highlight Cells Rules conditional formatting?
Less Than
A ___________ is a single selection of a group of cells.
Range
Which of the following functions is used to join two or more text strings into a single text string?
CONCATENATE()
The ___________ returns the current date and time of a computer.
NOW() function
A ___________ refers to the amount of space between data and an edge of a page in the worksheet.
Margin
