Probability of X<4 for X~Bi(5,0.2)

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Homework Help Overview

The discussion revolves around evaluating the probability of a random variable X following a binomial distribution, specifically X~Bi(5,0.2), with a focus on the condition X<4. Participants also express interest in additional evaluations related to the random variable, including mean and standard deviation calculations.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster seeks ideas for evaluating the probability of X<4 and asks for clarification on the term "Bi". Other participants provide interpretations of the binomial distribution and suggest that the terms M and D likely refer to mean and standard deviation, respectively.

Discussion Status

The discussion is ongoing, with participants exploring definitions and interpretations of terms related to the binomial distribution. Some guidance has been offered regarding the meanings of M and D, but there is no explicit consensus on the evaluation methods for the probability or the additional calculations.

Contextual Notes

There is a noted lack of clarity regarding the definitions of terms and symbols used in the problem, which may be found in the course materials. The original poster is encouraged to refer to their text or notes for further understanding.

Madou
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For a random value X~Bi(5,0.2) evaluate the probability of X<4.
Any ideas?
What is Bi?
 
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Other things i want to evaluate about the random value X~Bi(5, 0.2):
1) M[2-3x]
2)D[2-3x]
 
Hey, it's your problem. You should be the one who knows what terms and symbols you are using! If I had to guess, it would be that "Bi(5, 0.2)" is the binomial distribution with and event with probability of success 0.2 repeated 5 times. I would also guess that "M" is the mean value and D is "standard deviaton". But again, it is your course. Those terms should be defined in your text or notes.
 
thank you, i'll check it all out )
 

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