kitkatodem
contestada

A small train at an amusement park is carrying passengers. Half of the passengers are 6 years old, 1 over 10 are 7 years old, 1 fifth are 8 years old, and 1 fifth are 9 years old.



What is the expected age for one of the passengers on the train?


6 years


7.1 years


8 years


8.5 years

Respuesta :

ayannahpatel23oycw1j
8 years old in in 6th GRADE and I'm pretty sure that the answer for this problem is 8 years old
Cetacea

The expected age for one of the passengers on the train is 7.1 years. This can be explained by following steps:

Following are the calculation for the expected age given  

½ = 6 years old  

1/10 = 7 years old

1/5 = 8 years old  

1/5 = 9 years old

With the help of the above information, expected age can be calculated as follows:  

Expected age = ½*6+1/10*7+1/5*8+1/5*9

 = 6/2+7/10+8/5+9/5

 =3+0.7+1.6+1.8

 = 7.1

Therefore, the correct answer is 7.1 years old.

Learn more about calculation of expected age here:

https://brainly.com/question/2534508

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