3. In a marble game, players select marbles at random from a box containing a large number of marbles with different weights. The weight, in grams, of a randomly chosen marble has a continuous uniform distribution over the range [7, 10]. a. What is the probability density function of the weight of a marble? b. P(X

3. In a marble game, players select marbles at random from a box containing a large number of marbles with different weights. The weight, in grams, of a randomly chosen marble has a continuous uniform distribution over the range [7, 10]. a. What is the probability density function of the weight of a marble? b. P(X