An article reported the following data on oxygen consumption (mL/kg/min) for a sample of ten firefighters performing a fire-suppression simulation: 29.8 49.3 30.6 28.1 29.0 26.5 33.2 29.3 23.8 31.6

Compute the following. (Round your answers to four decimal places.)

a. The sample range 25,5 mL/kg/min
b. The sample variance s2 from the definition (i. e., by first computing deviations, then squaring them, etc.) mL2/kg2/min2
c. The sample standard deviation mL/kg/min
d. s2 using the shortcut method mL2/kg2/min2