Stats quiz 1

Chaps 1-3

Chaps 1-3

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J. T.

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J. T.

About these flashcards

This flashcard set covers fundamental statistical concepts at the university level, focusing on data analysis, methods, and key figures like Galton and Fisher. It delves into topics such as class intervals, frequency distributions, and various statistical scales, while also exploring different types of variables and statistical methods. Ideal for students and researchers, this flashcard set helps in understanding and applying statistical theories and techniques to real-world problems, making it a valuable resource for those studying statistics or conducting data-driven research.

Flashcards

61

Students

2

Language

English

Category

Quizzie

Level

University

Created / Updated

09.07.2017 / 09.07.2017

var that is not mentioned in the prob or hypo but is studies

intervening

var that the researcher cannot control

extraneous

variables with varying degrees of precision

continuous

variables with definite values

discrete or discontinuous

does not represent a quantity

nominal scale

scale with detectable differing degree

ordinal scale

scale usually seen in ranges or intervals

interval scale

scale that uses percentages

ratio scale

map graph aka _________

cartogram

category defined by lower and upper limits

class intervals/limits

true limits

value midway the upper and lower

class boundaries

class width

difference between 2 successive lower or upper limits

class size

number of observations

class frequency

average of upper and lower class limits

midpoint of class interval

class mark

bar graph of frequency vs class marks

histogram

line graph of class freq

frequency polygon

tabular arrangement of data by class intervals

cumulative frequency distribution or ogive

cfd whose freq sum < upper class boundary

rising

less than cfd

cfd whose sum of freq > lower class

falling

greater than cfd

tabular arrangement of data showing the proportion in percent of each freq to total freq

relative freq distribution

obtaining numerical measurements

Keyboard commands:

= turn,

= for-/backward,

= scroll

collection

organization of data into tables, graphs or charts so that logical and statistical conclusions can be manifested

Keyboard commands:

= turn,

= for-/backward,

= scroll

tabulation or presentation

extracting from the given data relevant information

Keyboard commands:

= turn,

= for-/backward,

= scroll

analysis

drawing conclusions

Keyboard commands:

= turn,

= for-/backward,

= scroll

interpretation

step 1 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

defining the problem

step 2 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

collecting and assembling relevant information

step 3 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

conducting an original investigation of the problem

step 4 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

classifying the data

step 5 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

presenting the data

step 6 of statistical analysis

Keyboard commands:

= turn,

= for-/backward,

= scroll

analyzing and interpreting the results

first introduced the word "statistics"

Achenwall

gambler who wrote the first known study of the principles of probability

Girotamo Cardano

dicovered the equation for normal distribution

De Moivre

applied the theory of probabilty to anthropological measurements and expanded the same principle o the field of psychology and education

father of modern stats

Adolf Quetelet

developed the use of percentiles and contributed the application of stats to heredity

Sir Francis Galton

worked with Galton to develop the theory of regression and correlation

Karl Pearson

develop methods for decision-making derived from smaller sets of data

William S. Gosset

developed Fisher's test used in the analysis of variance

Sir Ronald Fisher

a single figure that is representative of the general level of magnitudes of the items in a set of data

measure of central tendency or position or location

arithmetic average of all the scores

mean

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Flashcards

scale that uses percentages

ratio scale

map graph aka _________

cartogram

category defined by lower and upper limits

class intervals/limits

true limits

value midway the upper and lower

class boundaries

class width

difference between 2 successive lower or upper limits

class size

number of observations

class frequency

average of upper and lower class limits

midpoint of class interval

class mark

bar graph of frequency vs class marks

histogram

line graph of class freq

frequency polygon

tabular arrangement of data by class intervals

cumulative frequency distribution or ogive

cfd whose freq sum < upper class boundary

rising

less than cfd

cfd whose sum of freq > lower class

falling

greater than cfd

tabular arrangement of data showing the proportion in percent of each freq to total freq

relative freq distribution

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