The Standard Deviation of a Normal Random Variable X Is

question 69

Multiple Choice

The standard deviation of a normal random variable X is $20.Given that P(X ≤ $10) = 0.1841 we can determine that the mean of the distribution is equal to

• A)$13
• B)$26
• C)$20
• D)$28

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Definitions:

Fixations

An obsessive interest or feeling about someone or something, potentially leading to patterns of unhealthy or stalled development.

Saccades

Rapid, ballistic movements of the eyes that abruptly change the point of fixation.

Reading Understanding

The cognitive process of deciphering symbolic language to comprehend the intended message or information.

Reading Speed

The rate at which a person can read and comprehend text, which can vary greatly among individuals and can be influenced by practice and reading strategies.