A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit

A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit

a. Calculate the mean and standard deviation of this distribution. (Round intermediate calculation for standard deviation to 4 decimal places and final answer to 2 decimal places.)

Using our uniform distribution calculator, we get:
Mean = 720
Standard deviation = 28.87

b. What is the probability that X is less than 730? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

Using our uniform distribution calculator, we get:
0.6