null
US
Iniciar Sesión
Regístrate Gratis
Registro
Hemos detectado que no tienes habilitado Javascript en tu navegador. La naturaleza dinámica de nuestro sitio requiere que Javascript esté habilitado para un funcionamiento adecuado. Por favor lee nuestros
términos y condiciones
para más información.
Siguiente
Copiar y Editar
¡Debes iniciar sesión para completar esta acción!
Regístrate gratis
200059
Measures of dispersion
Descripción
(Descriptive Stats) HBS108 Mapa Mental sobre Measures of dispersion, creado por shirley.ha el 10/09/2013.
Sin etiquetas
descriptive stats
hbs108
hbs108
descriptive stats
Mapa Mental por
shirley.ha
, actualizado hace más de 1 año
Más
Menos
Creado por
shirley.ha
hace más de 11 años
313
1
0
Resumen del Recurso
Measures of dispersion
tell us how spread or dispersed the data are.
indicate the spread or variety of people’s measurements in a distribution.
Low dispersion
values are similar
High dispersion
wide range of different values
Range
highest no/- lowest no
use of range is limited, because it tells us nothing about how the data between these two extremes are spread.
Percentile
divide the data into 100 equal parts with equal numbers of observations in each part.
help us to provide information about the location of a score in respect to other scores.
score at or below a certain percentage of scores lying in a distribution
Quartiles
sets of values that divide the distribution into four parts such equal number of observations in each part
Q1
25%
lower quartile
Q2
50%
median
Q3
75%
upper quartile
IQR
is the companion to the median.
indicates the range of values spanned by the middle 50% of the observations
Q3-Q1
Standard deviation
the companion to the mean.
indicates the average distance or amount, by which each observation differs from the mean.
descriptive statistic that is the most commonly used measure of dispersion or spread
denoted by σ, in the population and SD or s in the sample
used with the mean to describe the distribution of observations.
most widely used measure of dispersion, particularly with interval and ratio level data
Mostrar resumen completo
Ocultar resumen completo
¿Quieres crear tus propios
Mapas Mentales
gratis
con GoConqr?
Más información
.
Similar
Measures of central tendency
shirley.ha
Frequency distributions & data in tables and graphs
shirley.ha
Probability Distributions
shirley.ha
Topic 8.2: Descriptive Stats
shirley.ha
Topic 8.4 Statistical Inference, Statistical Significance and Hypothesis Testing
shirley.ha
Null hypoth, chi-squares, p-values, CI
shirley.ha
P-values e.g
shirley.ha
P-values, Generalisability, Study Limits
shirley.ha
Topic 7: Quantitative Research - Sampling, Data Collection & Measurement
shirley.ha
Prob Methods of sampling
shirley.ha
Categorical & Cont variables
shirley.ha
Explorar la Librería