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Statistics true fals

Final

QuestionAnswer
subjective probability has little use in the real world false
classical probability uses frequency distribution to compute probabilities false
in classical probability, all outcomes in the sample space are equally likely true
when tow events are not mutually exclusive, P(A or B) = P (A)+ (B). false
if two events are dependent, they must have the same probability of occurring? false
the arrangement ABC is the same as BAC for combinations true
when objects are arranged in a specific order, the arrangement is called a combination false
The expected value of a random variable can be thought of as a long-run average false
The total area under a normal distribution is infinite false
the standard normal distribution is continuous distribution true
all variables that are approximately normally distributed can be transformed to standard normal variables true
the z value corresponding to a number below the mean is always negative true
the area under the standard normal distribution to the left of z = 0 is negative false
Created by: kdch0612
 

 



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