A small train at an amusement park is carrying passengers one-fourth of the passengers are 5 years old a 1/2of the passengers are 6 years old 1/8 and 7 year old and 1/8 are 9 year old. what is the expected age for one of the passengers on the train?

6yr
6.5yr
6.25yr
6.75yr

Question

A small train at an amusement park is carrying passengers one-fourth of the passengers are 5 years old a 1/2of the passengers are 6 years old 1/8 and 7 year old and 1/8 are 9 year old.                               what is the     expected age for one of the passengers on the train?

6yr
6.5yr
6.25yr
6.75yr

directrix · Answer

Expected age = 1/4 * 5 + 1/2 * 6 + 1/8 *7 + 1/8 * 9 = ?

@messy17