A student plants bean seeds in two 
 different types of soil and records the 
 heights of the plants in centimeters after 
 two weeks as shown below. 
 Soil A: 15, 14, 16, 12, 18
 Soil B: 18, 20, 17, 19, 17
 Which statement is correct?
 
 Soil A has a greater mean and a greater MAD than soil B. 
 Soil B has a greater mean and a  greater MAD than soil A. 
 Soil A has a greater mean than soil B. Soil B has a greater MAD than soil A.
 Soil B has a greater mean than soil A. Soil A has a greater MAD than soil B.