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Math 310 Exam 3

QuestionAnswer
Response Variable Measures an outcome or result of a study
explanation variable variable we think explains or causes change in a response variable
Correlation coefficient only values between -1 and 1
Postive corrilation both go up
negative corelation one goes up one goes down
lurking variable a 3rd variable causing corrilation of z variables
Strong relationship r closer to 1 or -1
no coorilation r=0
Factorials positive integer 5! is 5x4x3x2x1
Sequence counting principal actions are performed in a definate order the total outcomes is the product of the actions possibilities
Questions to ask 1. is there repetition yes- sequencial counting no- question 2 2. is order important yes- permutation (NpK) no- combination (NcK)
Uniform sample space all options have equal odds
Addition formula P(e or F)= p (e) + p(f) - p(e and f)
expected value given by x * p(x)
Created by: user-1726720
 

 



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