The Basics
The science of collecting, organizing, summarizing and analyzing information?
What is Statistics
Characteristics of individuals within a population are called ...
What are Variables?
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?
What is a Designed experiment
separating population into homogeneous groups called strata and obtaining a random sample from each strata
What is Stratified Sampling
The entire group of individuals to be studied
What is a Population
A type of variable based on grouping
What are categorical data
A poll is conducted in which 500 people are asked whom they plan to vote for in the upcoming election. What is this?
What is an Observational Study
method of sampling every kth individual
What is Systematic Sample
A subset of a population
What is a sample
Any type of variable based on a numerical measure is called
What is Quantitative Variable?
A researcher finds 200 women over 50 who exercise regularly, pairs each with a woman who has a similar medical history but does not exercise, then follows the subjects for 10 years to see which group develops more cancer. This is a
What is a prospective study?
Double Jeopardy
Sampling technique in which everyone has an equal chance of being chosen
What is a Simple random sample
A single person referred to in statistics or an experiment
What is a Individual or subject or experimental unit
Double Jeopardy
What are the 3 characteristics of a well designed experiment
What is control, randomization, and replication
To reduce variability within a treatment we should use ...
What is blocking ?
A way of sampling by taking chunks of a population
What is a Cluster Sample
Overall, what statistics give us that we look at
What is Data?
What is the difference between a strata and a block in stats?
What is a "stratas are used for surveys and a blocks are used in experiments"?
In an experiment, subject ______ to be apart of the experiment
What is volunteer?
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 type of bias may occur?
What is Volunteer bias or Wording bias