t would be best if Peter's report card percentage was based on the mean and if he could drop a percent, he should drop the 44%. 
 
 
Step-by-step explanation: 
 
The median (without dropping a score) of this set would be 75% 
 
( 44%, 64%, 71%, 75%, 84%, 90%, 98% ) 
 
The mean (without dropping a score) of this set would be 75.1428571% 
 
526 ÷ 7 = 75.14 ( 75.1428571 )