Deck 2: Statistics and Data Analysis

Question 1

Find out mean of this distribution? 6, 5, 7, 3, 8, 2, 6, 6, 3

A)6
B)8
C)5
D)4

Answer 1

5

Question 2

……………….. are used to arrange variables in a specific order?

A)nominal scale
B)ordinal scale
C)ratio scale
D)interval scale

Answer 2

ordinal scale

Question 3

Which type of validity is related to our capacity to predict certain events or to forecast the presence of certain present circumstance?

A)content variable
B)construction variable
C)criterion-related variable
D)nominal variable

Answer 3

criterion-related variable

Question 4

Who is regarded as the father of statistics?

A)sir ronald a fisher
B)casper newman
C)sir wijialt petty
D)james dodson

Question 5

The literal meaning of dispersion is ……………….?

A)scatterdness
B)calculation
C)summarization
D)differentiation

Question 6

An investigator can forecast the most precise value of a variable on the basis of available value, it is known as ………………?

A)regression analysis
B)estimation
C)prediction
D)constant variance

Question 7

Which of the following software helps a researcher to make bibliography?

A)ethnonotes
B)hyperqual
C)readcube
D)atlas.ti

Question 8

"Statistics is the science which deals with collection, classification and tabulation of numerical facts as the basis for explanation, description and comparison of phenomenon" who defined?

A)arthur lyon bowley
B)williamm vern lovittt
C)susan murphy
D)william seaaly gosset.

Question 9

………………… is indeed the exact center of the distribution of rating?

A)median
B)correlation
C)mean
D)mode

Question 10

The use of sampling information to draw inferences about the population is known as ………………?

A)inferential statistics
B)descriptive
C)measures of association
D)predictive analysis

Question 11

Find the median of the set of numbers following cases 6, 3, 9, 12, 20, 7, 15, 18, 5

A)12
B)7
C)8.5
D)9

Question 12

Which of the following are major objectives of measures or dispersion?

A)to find out the reliability of an average,
B)to control the validation of the data from the central value
C)to compare two or more set off data from the central value
D)to gain other statistics in order to evaluate the data further

Question 13

Find out odd one.

A)range
B)median
C)quartile deviations
D)lorenz curve

Question 14

Any change of value in one variable will also introduce change in the other variable corresponding to the change in the value of the first variable, is known as……….?

A)correlation
B)regression
C)median
D)deviations

Question 15

Which of the following is not a techniques for construction of scale?

A)logical
B)arbitrary
C)consensus
D)item analysis

Question 16

Find out an example for cumulative scale?

A)multidimensional scaling
B)likert scale
C)guttman's scalogram
D)thurstone differential scale

Question 17

Statistics are not as simply means of gathering numerical data but also ………………?

A)establishing sound method for handling and interpretation as well as drawing on relevant inferences from them.
B)predicting or forecasting future events based on extant data
C)used by social scientists to arrange and manipulate data for the purpose of addressing questions and evaluating hypotheses.
D)all of the above

Question 18

The main purpose of statistics are ……………………?

A)summating data
B)making inferences from population to sample
C)forecasting future events based on extant data
D)suited to eh study of qualitative phenomenon code

Question 19

What are the major limitations of statistics?

A)it is suited to the study of qualitative phenomenon
B)it does not study individuals
C)statistical laws are not exact
D)statistics is liable to be misused

Question 20

In the number of observations is odd, then the ……..………… is the middle value after the observations have been arranged in ascending order or magnitude?

A)mean
B)range
C)mode
D)median

Question 21

……………….. is a relationship between two variables in which both variables move in the same direction?

A)positive correlation
B)non-linear correlation
C)negative correlation
D)zero correlation

Question 22

Which of the following statement is incorrect regarding good classification?

A)it should be unambiguous
B)it should be exhaustive and mutually exclusive
C)it should be suitable for the purpose
D)it should be rigid and inflexible