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5 cards from this section. Quick, good the night before a test.
Define a discrete random variable with an example.
Think of a situation where you can count specific outcomes.
What is a continuous random variable? Provide one example.
Consider measurements that are not limited to whole numbers.
What is the key characteristic of discrete random variables?
Remember the distinction between countable and uncountable outcomes.
True or False: Continuous random variables use PMF.
Consider the type of functions used for each type of random variable.
A coin is tossed three times. Define a discrete random variable for the number of heads obtained and calculate its PMF.
Use combinations for heads in this case.
Given a continuous random variable with a PDF defined as f(x) = 3x^2 for 0 ≤ x ≤ 1, find the probability that the variable falls between 0.5 and 1.
Evaluate the integral at the limits provided.
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