Find which of the following is a Continuous random variable?

Category: QuestionsFind which of the following is a Continuous random variable?
Editor">Editor Staff asked 11 months ago

Find which of the following is a Continuous random variable?
 
(a) Number of kids in a family
 
(b) Number of planets around the sun
 
(c) Number of tails tossing a coin four times
 
(d) Life of an electric fan
 
This question was addressed to me by my college professor while I was bunking the class.
 
I want to ask this question from Random Variables and its Probability Distributions topic in portion 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

Correct option is (d) Life of an electric fan
 
Explanation: Except life of an electric fan, remaining all takes finite values. Life of an electric fan takes infinite values so it is a continuous random variable.