Suburban train ticket prices grew an average of 25 percent May 1 while subway and bus fares increased to 33 percent, from $1.50 to $2, on May 4.
Subway and bus fares rose 33 percent, from $1.50 to $2, on May 4, while tickets on suburban trains rose an average 25 percent May 1.
random component of a measurement error; elimination is frequently difficult; algorithm is robust if it can produce acceptable results even when it is present