Tiny Grains of Zirconium Silicate (Zircons) Found Embedded in Sedimentary

question 77

Multiple Choice

Tiny grains of zirconium silicate (zircons) found embedded in sedimentary rocks have been radiometrically dated to what age?

• A) 3.5 billion years ago
• B) 3.85 billion years ago
• C) 4.4 billion years ago
• D) 4.0 billion years ago

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Definitions:

Standard Deviation

An indicator of the degree of spread or variability within a dataset, showing the extent to which the values deviate from the average.

Sample Mean

The average value calculated from a sample subset of a population, used as an estimate of the population mean.

Freshmen

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Probability

A measure of the likelihood that an event will occur, quantified as a number between 0 and 1.