Which list is in descending order? a. 6.2x10^1 , 75%, 0.725, 6.8x10^-1, 5/8

b. 75%, 0.725, 5/8, 6.2x10^1, 6.8x10^-1

c. 6.2x10^1, 75%, 0.725, 5/8, 6.8x10^-1

d. 5/8, 6.8x10^-1, 0.725, 75%, 6.2x10^1

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The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed