BIOSTATISTICS Flashcards
study and use of theory and methods for the analysis of data arising from random processes or phenomena.
STATISTICS
branch of applied statistics directed toward applications in the health sciences and biology.
BIOSTATISTICS
branch of applied statistics directed toward applications in the health sciences and biology.
BIOSTATISTICS
all the inhabitants of a given country or area considered together.
POPULATION
all the inhabitants of a given country or area considered together.
POPULATION
Arithmetic average
Most common
Sum of all observation divided by the total number of observations
MEAN
subset of a population; representative of the overall population.
SAMPLE
a statistical measure that is used to calculate the average deviation from the mean value of the given data set
formula:
MEAN DEVIATION
numerical value in the middle when data set is arranged in order
MEDIAN
Value that occurs most often
MODE
this hypothesis states thatthere is no difference between groups or no relationship between variables.
NULL HYPOTHESIS
o one that states there is a statistically significant relationship between two variables
o It is usually the hypothesis a researcher or experimenter is trying to prove or has already proven.
ALTERNATIVE HYPOTHESIS
simplest measure of variation difference between the largest and the smallest observation
RANGE
Average of squared deviations of values from the mean
VARIANCE
the square root of the variance
most commonly used measure of variation
STANDARD DEVIATION