Question

The mean age of the students in a high school book club is 15.4 years. A 32-

year-old teacher joins the club. Which sentence is true?
O
A. The mean age is still 15.4 years.
B. The new mean age is 23.7 years.
C. The new mean age is less than 15.4 years.
D. The new mean age is greater than 15.4 years.

Answer 1

the anwser is A Because is askibg the age of the student

Answer 2

Yeah it’s A, or The mean age is still 15.4 years. This is the answer because the question is referring to the mean age of students, and with a teacher joining, the mean of only the students would not change.