30 Between what two standard deviations of a normal distribution contain 68% of the data? a) one below and one above
b) two below and two above
d) zero and two above
C) two below and zero

5\16 x 2\5 = 10/80simplify to 1/80

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this