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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
8 Nov 2021

Given information

Use the following information to answer the next eleven exercises. The age of cars in the staff parking lot of a suburban college is uniformly distributed from six months (  years) to  years.
Find the third quartile of ages of cars in the lot. This means you will have to find the value such that  , or  , of the cars are at most (less than or equal to) that age.

Step-by-step explanation

Step 1.

We know is the notation for uniform distribution. Where, is the lowest value of and is the highest value of .

The probability density function is as follows:

where .

According to the given information, the distribution of is uniform with parameters and , in mathematical terms

 

Substituting , we get

where .

It is given that

   

Therefore,

,

 

 

Therefore, the value of  such that is  

 

 

            

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