Question 8 of 17 (1 point) Attempt 1 of Unlimited 3.2 Section E Reaction Times In a study of reaction times to a specific stimulus, a psychologist recorded these data (in seconds). Find the variance and standard deviation. Round your answers to at least two decimal places. Class limits Frequency 2.1-2.7 11 2.8-3.4 12 3.5-4.1 9 4.2-4.8 8 4.9-5.5 - N 5.6-6.2 Send data to Excel Variance = Standard deviation