Discrete Random Variables S1
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S1 Discrete random variables - PMT
pmt.physicsandmathstutor.comS1 Discrete random variables . PhysicsAndMathsTutor.com (e) Var(X) (3) (Total 10 marks) 14. A fairground game involves trying to hit a moving target with a gunshot. A round consists of up to 3 shots. Ten points are scored if a player hits the target, but the round is over if the player
LECTURE 2: DATA (PRE-)PROCESSING - IIT Roorkee
www.iitr.ac.inDiscrete and Continuous Attributes Discrete Attribute Has only a finite or countable infinite set of values Examples: zip codes, counts, or the set of words in a collection of documents Often represented as integer variables. Continuous Attribute Has real numbers as attribute values Examples: temperature, height, or weight.
Surveys and Questionnaires
www.rds-yh.nihr.ac.ukdifferences between groups in a survey. Confounding variables can also be controlled for in the data analysis. 2.1 What are the advantages of using a survey? • Surveys have internal and external validity - A survey which is based on some form of random sampling technique will produce a sample which is representative of the particular population