1.What's the probability ph will be greater than 3.1 given its know to be less than 5.4?2. What's the probability ph will be less than 4.6 given its greater than 3.9?

The pH level, a measure of acidity, is important in studies of acid rain. For a certain Florida lake, baseline measurements of acidity are made so that any changes caused by acid rain can be noted. The pH for water samples from the lake is a random variable X, with probability density function 3 fx(x)= 64 (7 - x) 35x57 O elsewhere