280,000,000 Cm/115,000,000 Years = 2

question 53

Multiple Choice

280,000,000 cm/115,000,000 years = 2.4 cm/year A magnetic anomaly that formed 115 million years ago and is 2,800 km away from the present-day mid-ocean ridge. What has the average rate of plate movement been over this time interval? (1 km = 100,000 cm)

• A) 0.2 cm/year
• B) 1.2 cm/year
• C) 2.4 cm/year
• D) 12 cm/year
• E) 25 cm/year

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values; a high standard deviation means a lot of variation.

Exponential Distribution

A continuous probability distribution used to model the time between events in a Poisson point process.

Normally Distributed

A symmetrically shaped probability distribution around the mean, indicating a greater frequency of occurrences for data points close to the mean versus those that are remote.

Average Starting Salary

The mean initial compensation received by employees in their new positions across a specific sector or within a company.