Discrete or Continuous: 4 Random Variables

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Missy1
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Classify the following as discrete or continuous random variables.

(A) The number of people in India
(B) The time it takes to overhaul an engine
(C) The blood pressures of patients admitted to a hospital in one day
(D) The length of a centipede
 
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Missy said:
Classify the following as discrete or continuous random variables.

(A) The number of people in India
(B) The time it takes to overhaul an engine
(C) The blood pressures of patients admitted to a hospital in one day
(D) The length of a centipede


A discrete random variable is one that can take values from a discrete set (one where each value is some how separated from its neighbours).

A continuous random variable is one that can take any value in some interval of the real line.

So what do you think for A,B,C and D

CB