Vehicles are identified by RFID tags in order to collect bridge tolls. The project manager is considering two different technologies for RFID readers. By sampling two different options, the following data are collected about the accuracy of the readers:

Option 1: 99, 98, 99, 94, 92, 99, 98, 99, 94, 90 Option 2: 98, 97, 97, 97, 98, 98, 97, 97, 98

Calculate the mean, mode, and standard deviation of the two options.