in certain experiments the error made in determining the solubility of a substance is a RV having uniform density with alpha=-0.025 and beta=0.025 What are the possibilities that such an error is between

1)0.010 and 0.015

2)-0.012 and 0.012

i am thinking of applying uniform distribution as random variable of uniform density is given.But how to use the constants alpha and beta in it

please help