Io Has the Most Volcanic Activity in the Solar System

question 16

Multiple Choice

Io has the most volcanic activity in the Solar System because:

• A) it is continually being bombarded with material in Saturn's E ring
• B) it is one of the largest moons and its interior is heated by radioactive decays
• C) of gravitational friction caused by the moon Enceladus
• D) its interior is tidally heated as it orbits around Jupiter
• E) the ice on the surface creates a large pressure on the water below

---

Definitions:

Standard Deviation

A statistic that measures the dispersion or variability of a dataset relative to its mean.

Standard Deviation

An indicator of the spread or fluctuations in a data set, showing the degree to which the data points deviate from the average value.

Parameter

A numerical characteristic of a statistical population, such as a mean or standard deviation, that describes some aspect of the population.

Simple Random Sample

A sample in which each member of the population has an equal chance of being selected.