having difficulty with this question !

The round off errors when measuring the distance that a long jumper has jumped is uniformly distributed between 0 and 5.4 mm. Round values to 4 decimal places when possible. a. The mean of this distribution is b. The standard deviation is c. The probability that the round off error for a jumper's distance is exactly 4.4 is P(x = 4.4) = d. The probability that the round off error for the distance that a long jumper has jumped is between 0 and 5.4 mm is P(1 2.68) f. Pix => 3.9 1 x > 2) = 1. Find the 48th percentile. h. Find the maximum for the lower quartile