Question

A small train at an amusement park is carrying passengers. Half of the passengers are 4 years old, 1/10 are 5 years old, 3/10 are 6 years old, and 1/10 are 7 years old. What is the expected age for one of the passengers on the train?
A. 5 years
B. 5.5 years
C. 6 years
D. 6.1 years

Answer 1

Your answer is 5, because the majority is 5 years old

Answer 2

4+4+4+4+4+5+6+6+6+7=50   
50/10=5
Answer is A:5