X Is a Normally Distributed Random Variable with a Mean

question 24

Multiple Choice

x is a normally distributed random variable with a mean of 24 and a standard deviation of 6. The probability that x is less than 11.5 is

• A) 0.0186.
• B) 0.9814.
• C) 0.0076.
• D) 0.9924.

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Definitions:

Percentage

A number expressed as a fraction of 100, used to denote the ratio or proportion of a part relative to the whole.

Sudden Infant Death Syndrome

Sudden Infant Death Syndrome (SIDS) is the sudden and unexplained death of an apparently healthy infant, often during sleep, and without a clear cause even after a thorough investigation.

Babies

young infants, often referring to those from birth to 12 months, characterized by rapid physical and cognitive development.

Aged

refers to individuals who are significantly above the average human life expectancy, typically those considered elderly or senior citizens.