Statistics Flashcards: Developing Theoretical Probability Distributions Expected Value

Study Developing Theoretical Probability Distributions Expected Value in Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

State the expected value formula for $X\sim\text{Binomial}(n,p)$ .

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ANSWER

$E(X)=np$ . Mean of binomial distribution is number of trials times success probability.

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This deck focuses on Developing Theoretical Probability Distributions Expected Value, giving you a quick way to review the definitions, rules, and examples that matter most for Statistics.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 40Practice questions for this set

A fair die is rolled and a fair coin is flipped. The 12 outcomes in the sample space are equally likely. Define the random variable

X

as follows:

X=1

if the coin shows heads and the die shows a number greater than 4; otherwise

X=0

. Which table correctly represents the theoretical probability distribution of

X

Choose an answer

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