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# Statistics Test1

The gathering, organization, and analysis of information about a group to either describe the group or to make predictions about a larger group. Statistics (the study)
The gathering and organization of data to describe the characteristics of a group. Descriptive Statistics
Analysis of data from a smaller group used to make a prediction about a larger group. Inferential Statistics
The total group whose characteristics are being studied (large group). Population
The subset of the population from which data is gathered. Sample
Numerical description of a sample characteristic. Statistic
Numerical description of a population characteristic. Parameter
Sampling technique where data is gathered from every member of the population. Census
A sample that best represents the overall characteristics of the popultation. Representative Sample
A sampling technique where every member of the population has a chance of being selected for the sample. Random Sampling
Every possible sample of a fixed size has the same chance of being selected (every member has same chance). Simple Random Sample
Once the individual is chosen from the sample, individual is removed from the population. Sampling without Replacement
An individual is returned to the selection pool once selected for the sample. Sampling with Replacement
The individuals within a populatin or sample. Also known as elements. Members
Characteristics being studied about a population. Values that can change between elements. Variables
Value of a variable for an element. Observation
Collection of elements and observations. Data Set
Descriptive data consisting of names and labels. Qualitative Data
Numerical data that allows calculation. Quantitative Data
Quantitative data that is a result of a measurement where the scale of measure has an infinite number of values. Continuous Data
Quantitative data that results from the count of some quantity whose value can occupy a finite number of possibilities in the range of measure. Discrete Data
Study where numerous elements are observed at one point in time. Cross-section
A study where a single element is observed at numerous points over a given period of time. Time Series
Mathematical short hand for adding all elements in a group. Summation Notation
The frequency of a class divided by the sum of all frequencies. Relative frequency
A listing of data values in the sequence in which the values were collected without order or ranking. Raw Data
Graphical representation of qualitative data where each possible value of an element is represented by a bar whose height (or length for horizonal) is given by frequency. Bar Graph
Visual representation of a data set that shows each group or class as part of a whole 360 degree circle. Pie chart
An organization of a data set of quantitative data into groups consisting of ranges of values and a noation of how many entries in the sample that fall within each range. Frequency Distribution for Quantitative Data
Smallest and largest values with in a single class. Class Limits
Midpoint between upper class limit of one class and the lower class of the next class. Class Boundary
The possible values between the lower and upper limits of a class. Class Width
Type of bar graph used when referencing quantitative data where each class is represented by a bar and theheight is represented by frequency (or relative frequency or relative frequency percentage). Histogram
Has the same shape on both sides of some center point. Symmetric
A histogram where all classes have the same or very similiar frequency. Rectangular
A set with a value that is significantly larger than the majority. Skewed to Right
A set with a value or small number of values that are significantly smaller than the majority. Skewed to Left
Classes are labled by their midpoints, fequency is denoted by a dot above midpoint and these dots are connected. Frequency Polygon
Total frequency of all values less than a class upper class boundary. Cumulative Frequency
The frequency of values less than the upper class limit of a class. Cumulative Frequency Distribution
Graphical representation of a cumulative frequency distribution where classes are labeled by their upper class boundary and cumulative frequency is denoted by a dot above the class's bound. Ogive
Charts that divide a member of a quantitative dat set into two parts: the stem - first or first two digits of a number/ the leaf - last digit or digits Stem and Leaf Plot
A graph that represents a data set with dots above a number line corresponding to individual members of a data set. Dot Plot
Created by: angelangel13579