A study shows that the lengths of the careers of professional football players are nearly normally distributed with a mean of 5.2 years and a standard deviation of 1.9 years. (For each answer, enter a number.)

(a) What percent of professional football players have a career of more than 8 years? (Round your answer to one decimal place.)

%

(b) If a professional football player is chosen at random, what is the probability that the player will have a career of between 3 and 4 years? (Round your answer to three decimal places.)

%