A Student Takes a True-False Test That Has 13 Questions $X$

question 45

Multiple Choice

A student takes a true-false test that has 13 questions and guesses randomly at each answer. Let $X$ be the number of questions answered correctly. Find $P ($ Fewer than $4 )$

• A) 0.8666
• B) 0.0112
• C) 0.1334
• D) 0.0461

---

Definitions:

James-Lange Theory

A theory of emotion suggesting that physiological arousal precedes the experience of emotion.

Afraid

A feeling of fear or anxiety about a possible or likely situation or event.

Anxious

Feeling anxious or stressed, usually because of an upcoming event or something that has an unpredictable result.

James-Lange Theory

A theory of emotion that suggests emotions are the result of physiological reactions to events, where we feel emotion because of the interpretation of bodily reactions.