Use the Following to Answer the Question(s) Below

question 27

Multiple Choice

Use the following to answer the question(s) below.
A magazine that publishes product reviews conducted a survey of teenagers' preferences for cell phones. Three brands of cell phone designed specifically with teens in mind were the focus of the study. The table summarizes responses by brand and gender.

-What percent of teenagers preferred LG Rumour?

• A) 50.0% (350/700)
• B) 40.6% (142/350)
• C) 24.9% (87/350)
• D) 15.7% (55/350)
• E) 20.3% (142/700)

---

Definitions:

Inhibitory Postsynaptic Potentials

Negative changes in the membrane potential of a postsynaptic neuron, making it less likely to generate an action potential, hence inhibiting the neuron.

Central Nervous System

Comprising the brain and spinal cord, it processes information and is the primary control center for the body.

Hormones

Chemical messengers produced by the endocrine glands, these compounds regulate various physiological functions and behaviors.

Neurotransmitters

Chemical messengers in the body that transmit signals from nerve cells to target cells.