A four year old is going to spin around with his arms stretched out 100 times. From past experience, his father knows it takes approximately 1/2 second to perform one full spin, with a standard deviation of 1/3 second. Consider the probability that it will take this child over 58 seconds to complete spinning. What is the approximate probability that it will take this child over 55 seconds to complete spinning? Compute the answer both with Chebyshev's inequality and with the CLT.