Suppose That a Homeowner Notices a 20 Percent Increase in the Water

question 4

Multiple Choice

Suppose that a homeowner notices a 20 percent increase in the water bill for July. The homeowner traces this increase to four sources: a running toilet, a dripping faucet, a guest who visited for two days, and a broken sprinkler head. Further study shows that the broken toilet accounts for 8 percent of the increase, the faucet 2 percent, and the visiting guest 4 percent. The homeowner concludes that the remaining 8 percent is attributable to the broken sprinkler head. What method did the homeowner use in drawing this conclusion?

• A) The method of agreement.
• B) The joint method of agreement and difference.
• C) The method of difference.
• D) The method of residues.
• E) The method of concomitant variation.

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Definitions:

Leptin Levels

Concentrations of leptin, a hormone produced by fat cells that is involved in regulating appetite and energy balance.

Arcuate Nucleus

A nucleus located in the hypothalamus that plays a crucial role in appetite regulation and other neuroendocrine functions.

Hypothalamus

This brain section, found below the thalamus, plays a key role in directing the operations of the autonomic nervous system and the pituitary gland's output, ensuring the regulation of crucial bodily processes including temperature, thirst, hunger, and the balance of bodily systems.

Serotonin

A neurotransmitter in the brain that affects mood, emotion, sleep, and appetite.