Assume That the Random Variable X Is Normally Distributed, with Mean

question 125

Multiple Choice

Assume that the random variable X is normally distributed, with mean $\mu$ = 60 and standard deviation $\sigma$ = 8. Compute the probability $\mathrm { P } ( 38 < \mathrm { X } < 70 )$

• A)0.8914
• B)0.8819
• C)0.8944
• D)0.7888

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Definitions:

Fraternal Twins

Twins who are born at the same time but develop from two different eggs fertilized by two different sperm, sharing about 50% of their DNA, similar to typical siblings.

Identical Twins

A pair of twins that developed from a single fertilized egg, sharing exactly the same genetic material.

Impoverished Environments

Environments lacking in physical, emotional, or social resources, which can negatively impact development and well-being.

Intervention Programs

Structured programs designed to address specific issues, such as substance abuse or learning difficulties, typically aiming to bring about positive change in individuals or groups.