2. A student conducts several tests of reaction time, resulting in the histogram below. What can be inferred from the histogram?
OA. The sight data has a greater mean and a larger standard deviation than the sound data.
OB. The sight data has a greater mean and a smaller standard deviation than the sound data.
OC. The sight data has a lower mean and a larger standard deviation than the sound data.
O D. The sight data has a lower mean and a smaller standard deviation than the sound data.