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Not your average video:
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Distributions & Random Variables
Watch comprehensive video reviews for Distributions & Random Variables, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.
Not your average video:
Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.
Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.
Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.
Not your average video:
Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.
Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.
Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.
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SL 4.7
Probability distributions can also take the form
For example:
Notice that
This is not a coincidence, the 221 was specifically chosen so that the probabilities would sum to 1.
Example
Find the value of k in the probability distribution
Plugging in each of values of x and adding the probabilities:
so k=121.
SL 4.7
Probability distributions can also take the form
For example:
Notice that
This is not a coincidence, the 221 was specifically chosen so that the probabilities would sum to 1.
Example
Find the value of k in the probability distribution
Plugging in each of values of x and adding the probabilities:
so k=121.