symmetric and asymmetric distribution

asymmetric distribution

A distribution of data values that is skewed I.e has two halves which are not mirror images of each other

skewness

A measure of the lack of symmetry in a distribution. measure in how asymmetric the distribution of the data is from the mean

high kurtosis means low kurtosis means

HK: have heavy-tailed or outliers LK: have light-tailed or less outliers

leptokurtic platykurtic

L: positive excess kurtosis P: negative excess kurtosis

kurtosis

how flat or peaked a normal distribution is measure whether the data are heavy-tailed or light-taled to a normal distribution

who develop the pearson coefficient of skewness

karl pearson

explain how tall and sharp the central point is

kurtosis

is a measure of degree of tailedness

kurtosis

measure of data, wither peaked or flat, w/ respect to the probability distribution

kurtosis

relative pointedness of the standard bell curve, defined by the frequency distribution

kurtosis

three measurements of kurtosis

leptokurtic k>3 mesokurtic k=3 platykurtic k<3

right skewed distribution

mean > median mas layo sa point of origin mas mahaba ang right tail

left skewed distribution

mode > mean mas malapit sa point of origin mas mahaba ang left tail

characteristics of a frequency distribution that ascertain its symmetry about the mean

skewness

indicator of lock of symmetry w/ respect to the central point

skewness

is a measure of the degree of lopsidedness

skewness

show how much and in which direction, the value deviate from the mean

skewness

symmetric distribution

the right and left sides of the histogram are approximately mirror images of each other