Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
a way to get information from data
|
statistics
|
|
methods of organizing, summarizing, and presenting data in a convenient and informative way
|
descriptive statistics
|
|
methods used to draw conclusions or inferences about characteristics of populations based on sample data
|
inferential statistics
|
|
the group of all items of interest to a statistics practitioner, may be infinitely large
|
population
|
|
descriptive measure of a population
|
parameter
|
|
set of data drawn from the population
|
sample
|
|
descriptive measure of a sample
|
statistic
|
|
____ are used to make inferences about _____
|
statistics, parameters
|
|
the process of making an estimate, prediction, or decision about a population based on sample data
|
statistical inference
|
|
the proportion of times that an estimating procedure will be correct
|
confidence level
|
|
measures how frequently a conclusion will be wrong in the long run
|
significance level
|
|
some characteristic of a population or sample
|
variable
|
|
possible observations of a variable
|
values
|
|
observed values of a variable
|
data
|
|
real number data (height, weight, income)
|
interval/quantitative/numerical
|
|
category data
|
nominal/qualitative/categorical data
|
|
nominal data that is ordered
|
ordinal data
|
|
summarization of data in a table that presents the categories and their counts
|
frequency distribution
|
|
lists the categories and the proportion with which each occurs
|
relative frequency distribution
|
|
chart used to display frequencies
|
bar chart
|
|
chart used to display relative frequencies
|
pie chart
|
|
histogram with long tail extending to the right
|
positively skewed
|
|
histogram with long tail extending to the left
|
negatively skewed
|
|
class with the highest number of observations
|
modal class
|
|
histogram with a single peak
|
unimodal histogram
|
|
histogram w/ two peaks
|
bimodal histogram
|
|
histogram turned on its side that shows each observation
|
stem and leaf display
|
|
progressive summation of relative frequency distributions
|
cumulative relative frequency distribution
|
|
statistical techniques applied to single sets of data
|
univariate
|
|
statistical techniques used to describe the relationship between variables
|
bivariate
|
|
table used to describe the relationship between two nominal variables
|
contingency table
|
|
observations measured at the same time
|
cross-sectional data
|
|
observations measured at successive points in time
|
time-series data
|
|
time-series data is graphically depicted on a
|
line chart
|
|
graphical representation of cumulative relative frequency chart
|
ogive
|