Question

What is the value of a? P(X≥a)=0.5

Answer 1

`a=3`

Explanation:

This question essentially means what is the value of `a` such that half of the values lie above it?

Normally you would use integrals and a probability function to solve this but this graph is clearly symmetrical with 3 in the middle. You can see that half of the area is between 0 and 3 and the other half is between 3 and 6. Thus `a=3`