For Any Normally Distributed Random Variable with Mean μ and Standard

question 114

Multiple Choice

For any normally distributed random variable with mean μ and standard deviation σ, the proportion of the observations that fall outside the interval [μ - σ, μ + σ] is the closest to ________.

• A) 0.0466
• B) 0.3174
• C) 0.8413
• D) 0.1687

---

Definitions:

Lightning Strikes

Natural, electrical discharges of very short duration and high voltage between a cloud and the ground, or within a cloud.

Humour

A cognitive process of perceiving and expressing what is amusing, comical, or laugh-inducing.

Immune Functioning

Refers to how well the immune system operates to defend the body against infections and diseases.

Negative Emotional Responses

Reactions characterized by feelings such as sadness, anger, fear, or disgust, typically as a result of stimuli perceived as negative or threatening.