imo class 12 probability

A random variable takes values 2,4,6 with probabilities 0.3,0.4,0.3. Mean is:

VAVidaara Admin Asked 6d ago 0 views 0 answers
#IMO#Class 12#Mathematics#Probability#mathematical-reasoning

A random variable takes values 2,4,6 with probabilities 0.3,0.4,0.3. Mean is:

  • A. 4
  • B. 4.2
  • C. 3.8
  • D. 4.5

Answer: A) 4

Explanation: 2(0.3)+4(0.4)+6(0.3)=4.

0 Answers

Log in to post your own answer or join the discussion.

Discussion (0)

No comments yet — start the discussion.

← Back to all questions