A Multiple Choice Exam Has 50 Questions with 5 Choices $\mu=10$

question 10

Multiple Choice

A multiple choice exam has 50 questions with 5 choices for each question.If an individual is simply guessing at each answer, what are the values for the mean and the standard deviation of the normal approximation to the binomial distribution for the number of correct answers?

• A) \( \mu=10 \) and \( \sigma=\sqrt{8} \)
• B) \( \mu=25 \) and \( \sigma=\sqrt{8} \)
• C) \( \mu=10 \) and \( \sigma=16 \)
• D) \( \mu=25 \) and \( \sigma=8 \)

Recognize and explain the process of ligand-receptor interaction and its reversibility.

Identify the molecular consequences of mutations in receptors and their effects on signal transduction.

Explain the mechanisms of action and the importance of second messengers in cell signaling.

Describe the process of signal amplification in cell signaling pathways.

---

Definitions:

Online Purchases

The act of buying goods or services over the Internet.

C2C

Consumer-to-consumer, a business model where consumers trade products, services, or information with each other, typically via the internet.

E-commerce Safety

Procedures and methods designed to protect online shoppers and businesses from fraud, theft, and other online security threats.

Unsafe Site

A website that poses security risks to users, potentially containing malware, phishing schemes, or other harmful elements.