Effective maintenance of equipment depends on the ability to accurately forecast the demand for spare parts. The Journal of Quality in Maintenance Engineering (Vol. 18, 2012) developed a statistical approach to forecasting spare parts demand. The methodology used the gamma distribution with parameters α and β to model the failure rate, Y, of system components. The model was developed under the assumption that the actual failure rate does not exceed twice the theoretical mean failure rate, . Assume α = 2and β = 5, then find P (Y < 2μ).