Find the Expected Value and Variance for the Random Variable $f ( x ) = 3 x ^ { 2 }$

question 4

Short Answer

Find the expected value and variance for the random variable whose probability density function is $f ( x ) = 3 x ^ { 2 }$ 0 ≤ x ≤ 1.
Enter just two reduced fractions (unlabeled) in the order E(X), Var(X) separated by a comma.

Differentiate between the sensory adaptations and mechanisms involved in vision and hearing.

Recognize the psychological aspects of sensory experience, including the role of expectation and unconscious information processing.

Understand the influence of age and perceptual style on how we interpret sensory information.

Understand the difference between sensation and perception and the sequence of events that lead to a sensation.

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