The Mean Grade of the 30 Students in Section 1

question 111

Multiple Choice

The mean grade of the 30 students in Section 1 is 80. The mean grade of the 40 students in Section 2 is 85. The mean grade of the 30 students in Section 3 is 80. What is the mean grade of all students from the three sections combined?

• A) 80.00
• B) 81.67
• C) 82.00
• D) 85.00

---

Definitions:

Poker Players

Individuals known for their ability to play poker, often characterized by skills in strategic thinking, patience, and an ability to read others.

Nonverbal Behavior

Communication without the use of spoken language, including gestures, body language, facial expressions, and other forms of physical expression.

Certainty

The state of being sure about something or the absence of doubt.

Defensiveness

A psychological reaction characterized by the need to protect oneself from criticism, perceived threat, or vulnerability, often hindering open communication.