A small train at an amusement park is carrying passengers. One-fourth of the passengers are 5 years old, 1/2 of the passengers are 6 years old, 1/8 are 7 years old, and 1/8 are 9 years old.

What is the expected age for one of the passengers on the train?
6 years
6.5 years
6.25 years
6.75 years

Question

A small train at an amusement park is carrying passengers. One-fourth of the passengers are 5 years old,  1/2 of the passengers are 6 years old,  1/8 are 7 years old, and 1/8 are 9 years old.

What is the expected age for one of the passengers on the train? 
       6 years
       6.5 years
       6.25 years
       6.75 years

misty1212 · Answer

hi dear
you have something missing here

misty1212 · Answer

in your question
you have one fourth are 5, but not how many are 6, 7 or 9

anonymous · Answer

im sorry ill fix it lol thankss

anonymous · Answer

What did you choose as your answer?

misty1212 · Answer

what ever it is,  multiply and add 
$$\frac{1}{4}\times 5+whatever \times 6+whatever \times 7+whatever\times 9$$

misty1212 · Answer

$$\frac{1}{4}\times 5+\frac{1}{2} \times 6+\frac{1}{8} \times 7+\frac{1}{8}\times 9$$

anonymous · Answer

thanks so much got answer :)

misty1212 · Answer

glad you got it