Probability Distributions & Descriptive Statistics - Bernouilli and Binomial Distribution
10 important questions on Probability Distributions & Descriptive Statistics - Bernouilli and Binomial Distribution
1. What is a Bernoulli distribution?
✅ success (coded as 1)
❌ failure (coded as 0)
It models a single trial of an experiment.
2. What are the key parameters of a Bernoulli variable?
What is the expected value (mean) of a Bernoulli variable?
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What is the variance of a Bernoulli variable?
What is a Binomial distribution?
What are the parameters of a Binomial variable?
P = probability of succes in each trial
X ∼ Bin(n, p)
What is the probability mass function (PMF) of a Binomial variable?
What is the mean of a Binomial distribution?
What is the variance of a Binomial distribution?
Relationship between Bernoulli and Binomial
Binomial = sum of several Bernoulli trials
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