The Weights of Cockroaches Follow a Normal Distribution with Mean

question 48

Multiple Choice

The weights of cockroaches follow a Normal distribution with mean 80 grams and standard deviation 2 grams. The figure below is the Normal curve for this distribution of weights. At which point on the Normal curve is the median of the distribution of cockroach weights located?

• A) C
• B) D
• C) E
• D) Either point C or point E is correct, but can't tell which.
• E) Can't tell from the information given.

---

Definitions:

Sinuosity

A measure of how much a river meanders or curves compared to the straight path down its valley.

Esker

A long, winding ridge of stratified sand and gravel, typically in a serpentine shape, formed by retreating glaciers or ice sheets.

Narrow Canyons

Deep, slender valleys with steep sides, carved by the erosive force of flowing water over geological time scales.

Downward Incision

The erosional process by which a river cuts deeper into its bed, often leading to the formation of a canyon or gorge.