Based on the Observed Amount of Deuterium in the Universe

question 72

Multiple Choice

Based on the observed amount of deuterium in the universe, we can conclude that

• A)the density of ordinary (baryonic)matter is about 5 percent of the critical density.
• B)neutrons outnumber protons 7 to 1 in the universe.
• C)we live in a critical- density universe.
• D)ordinary (baryonic)matter makes 75 percent of the mass of the universe.
• E)most of the deuterium that was created during the era of nucleosynthesis has since been destroyed.

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Definitions:

Population Standard Deviation

A measure of the dispersion or variability within a total population, quantifying how much the individual data points differ from the population mean.

Average Income

Average income is the total income divided by the number of entities in the group, providing a simple measure of the economic well-being of a population.

Confidence Interval

An interval of values, obtained from sample observations, that is likely to include the actual population parameter within a specified confidence level.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a higher standard deviation indicates greater variability.