Suppose the probability density function of the length of computer cables is f left-parenthesis x right-parenthesis equals 0.1 from 1200 to 1210 millimeters. a) determine the mean and standard deviation of the cable length. mean = entry field with correct answer 1205 millimeters standard deviation = entry field with correct answer 2.89 millimeters (round the answer to 2 decimal places.) b) if the length specifications are 1192less-than x less-than 1204, what proportion of cables is within specifications?