TABLE 2-6 The Following Are the Durations in Minutes of a Sample

question 193

Multiple Choice

TABLE 2-6
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

-Referring to Table 2-6, what is the cumulative relative frequency for the percentage of calls that lasted 10 minutes or more?

• A) 0.16
• B) 0.24
• C) 0.41
• D) 0.90

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Definitions:

Oceanic Crust

The portion of the Earth's crust that forms the ocean basins, primarily composed of basalt and denser than continental crust.

Plate Boundary

The edges where two tectonic plates meet, which can be categorized into convergent, divergent, or transform boundaries based on their movement relative to each other.

Spreading Center

Divergent boundary where two oceanic plates move apart (diverge).

Transform Fault

A geological fault where the movement of the Earth's crust is predominantly horizontal, often leading to earthquakes in these regions.