C. If roller coaster 1 was only 420 feet high, how would this effect the mean and standard deviation you calculated in (a) and (b)? Then recalculate the mean and standard deviation using 420 as the height of roller coaster 1. Choose the correct answer below. A. The mean and standard deviation will increase B. The mean will decrease and the standard deviation will increase C. The mean will increase and the standard deviation is will decrease D. The mean and standard deviation will decrease. The standard deviation using 420 of roller coaster 1 is: The new mean is ____ ft The new standard deviation is ___ ft