Show:
The Basics
Types
Characteristics
Study or Experiment?
Types of sampling
100
The science of collecting, organizing, summarizing and analyzing information?
Statistics
100
Free points!
:)
100
Variables
What are characteristics of individuals within a population called?
100
Seventh grade students are randomly divided into two groups. One group is taught math using traditional techniques; the other is taught using a reform method. After 1 year, each group is given a test to compare proficiency. What is this called?
Designed experiment
100
separating population into homogeneous groups called strata and obtaining a random sample from each strata
Stratified Sampling
200
The entire group of individuals to be studied
A Population
200
A table is mostly used in this kind of statistics
Descriptive Statistics
200
A type of variable based on attributes
qualitative variable
200
A poll is conducted in which 500 people are asked whom they plan to vote for in the upcoming election. What is this?
Observational Study
200
method of sampling every kth individual
Systematic Sample
300
A subset of a population
A sample
300
What statistics makes claims about the population?
Inferential Statistics
300
What is a numerical measure called in terms of variables?
Quantitative Variable
300
individuals look back and remember or look at existing records
Case Control
300
Generic term for selecting a sample randomly
Simple random sample
400
What a single person referred to in statistics
Individual
400
What is a numerical summary based on a sample?
A statistic
400
What is a variable that has an infinite number of possible values?
Continuous Variable
400
A type of observational study that is like a "snapshot"
Cross-sectional study
400
A way of sampling by taking chunks of a population
Cluster Sample
500
Overall, what statistics give us that we look at
Data
500
What is a numerical summary of the population?
A parameter
500
What is a variable in which it can be counted and is finite?
Discrete Variable
500
This study identifies a group and follows them over time
cohort study
500
A magazine called "Robots weekly" sends out a survey to its subscribers to see if they would support a law that requires the government to support more money for robot development. What kind of issue is this?
Sampling Bias