FT stats Flashcards
an attribute or characteristic that may take more than one value which can either be measured or classfied
VARIABLE
it is data that involves one data
UNIVARIATE
x lang
UNIVARIATE
data that has two variables
BIVARIATE
analysis of bivariate data involves describing the relationship between two variables
CORRELATION ANALYSIS
process of procedure of describing the relationship between two variables
CORRELATION ANALYSIS
how can we describe correlation?
SCATTER PLOT
PEARSON PRODUCT MOMENT CORRELATION COEFFICIENT
graphical representation that relationship of the correlation of two variables of bivariate data
SCATTER PLOT
diagram that is used to show degree and pattern of relationship between two set of data
SCATTER PLOT
where scatter plot constructed
XY COORDINATE
independent variable
X ABSCSISSA
dependent variable
Y ORDINATE
exists if high values in one variable are asociated with high values in other variable
POSITIVE CORRELATION
direction of positive correlation
LEFT TO RIGHT DOWN TO UP
direction of negative correlation
RIGHT TO LEFT UP TO DOWN
exists if one variable are associated to either high or low values in the other variable
ZERO CORRELATION
random ang sabog sa scatter plot
ZERO CORRELATION
pag straight line talagang literal
PERFECT CORRELATION
pag medyo bumaliko pero straight padin
HIGH CORRELATION
pag may direction pero kalat
LOW CORRELATION
exists when all the points on scatter plot is staright line
PERFECT CORRELATION
correlation can be described by two
DIRECTION AND STRENGTH
possible directions
POSITIVE
NEGATIVE
ZERO
possible strength
PERFECT
STRONG
MODERATE
WEAK
when data points fall closer to a straight line
STRONG CORRELATION
when data points a little bit farther from staright line
MODERATE CORRELATION
when data points spread out but has direction
WEAK CORRELATION
if r equals one?
PERFECT POSITIVE
if r equals zero?
NON OR ZERO
if r equals -1 ?
PERFECT NEGATIVE
if r is 0.81 - 0.99
VERY HIGH
if r is 0.61 - 0.80
HIGH
if 0.41 - 0.60
MODERATELY
if 0.21 - 0.40
LOW
if 0.01- 0.20
NEGLIGIBLE
formula for pearson
NEXY MINUS EXEY DIVIDED BY SQUARE ROOT OF NEXSQUARED-X2 TIMES NEYSQUARED -Y2
what is n in pearson
NUMBER OF PAIRS
