The Three Most Abundant Elements in Earth's Crust Are

question 64

Multiple Choice

The three most abundant elements in Earth's crust are

• A)potassium,sodium,and iron.
• B)magnesium,potassium,and oxygen.
• C)iron,aluminum,and calcium.
• D)oxygen,silicon,and aluminum.
• E)magnesium,iron,and calcium

---

Definitions:

Population Mean

The average value of a characteristic or measurement across the entire population targeted in a study.

Population Standard Deviation

A measure of the dispersion or spread of a set of data points in a population, quantifying how much the data diverges from the mean of the population.

Sample Size

The number of observations or replicates used in a statistical sample.

Confidence Estimate

A range or interval within which an unknown population parameter is expected to lie, calculated to a specific confidence level.