A month has atmost 31days, X = Number of days in a month, is X a discrete random variable?

Category: QuestionsA month has atmost 31days, X = Number of days in a month, is X a discrete random variable?
Editor">Editor Staff asked 11 months ago

A month has atmost 31days, X = Number of days in a month, is X a discrete random variable?
 
(a) True
 
(b) False
 
The question was posed to me in an online quiz.
 
My question comes from Random Variables and its Probability Distributions in division Probability of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

Right choice is (a) True
 
To elaborate: X = Number of days in a month.
 
The number of days in a month can be 29,30,31
 
X takes finite values so, therefore it is Discrete and range X = {28,29,30,31}