The brain volumes (cm) of 50 brains vary from a low of 904 cm" to a high of 1490 cm" . Use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 185.8 cm", assuming the estimate is accurate if it is within 15 cm The estimated standard deviation is cm3 Type an integer or a decimal. Do not round.) Compare the result to the exact standard deviation. A. The approximation is not accurate because the error of the range rule of thumb's approximation is greater than 15 cm B. The approximation is not accurate because the error of the range rule of thumb's approximation is less than 15 cm. C. The approximation is accurate because the error of the range rule of thumb's approximation is greater than 15 cm. D. The approximation is accurate because the error of the range rule of thumb's approximation is less than 15 cm