The Lengths of Human Pregnancies Can Be Described by a Normal

question 79

Multiple Choice

The lengths of human pregnancies can be described by a Normal model with a mean of 268 days and a standard deviation of 15 days.What percentage can we expect for a pregnancy that will last at least 300 days?

• A)98.34%
• B)1.66%
• C)1.79%
• D)48.34%
• E)1.99%

Understand the concept and use of modifiers in sentences.

Recognize the importance of clarity and conciseness in communication.

Comprehend subject-verb agreement and its significance in constructing proper sentences.

Identify and use various verb tenses accurately.

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Definitions:

Boiling Point

The specific temperature at which a liquid undergoes vaporization by equating its vapor pressure with the external atmospheric pressure.

Dichlorobenzene

An organic compound consisting of a benzene ring with two chlorine atoms attached, used widely as an industrial solvent and chemical precursor.

Proton-decoupled

A technique in NMR spectroscopy where the interaction between protons is removed or decoupled, simplifying the spectrum and focusing on other interactions.

NMR Spectrum

A representation of the nuclear magnetic resonance of a molecule, providing detailed information about the structure, dynamics, reaction state, and chemical environment of molecules.