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Not your average video:
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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.
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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AHL 4.14
The expected value of a continuous random variable is
Intuitively, this can be thought of as the "balance point" of the distribution, the weighted sum of all values of x.
The expected value is also known as the mean.
Example
The continuous random variable X has the probability density function
Find E(X).
AHL 4.14
The expected value of a continuous random variable is
Intuitively, this can be thought of as the "balance point" of the distribution, the weighted sum of all values of x.
The expected value is also known as the mean.
Example
The continuous random variable X has the probability density function
Find E(X).