Suppose the probability density function of the length of computer cables is f ( x ) = 0.1 from 1200 to 1210 millimeters. a) determine the mean and standard deviation of the cable length. mean = standard deviation = (round the answer to 2 decimal places.) b) if the length specifications are 1197< x < 1206, what proportion of cables is within specifications? (round the answer to 1 decimal place.)