Do I have to take Calculus after taking PreCalculus or Math Analysis?
No. Statistics and Discrete Math are very good options. Both are college-preparatory courses recognized by the UC and CSU systems as advanced mathematics. See the Math Course Profiles for details about each course. The Mathematics Requirements published by the University of California states, Although only three years are required, four years are strongly recommended. Among regularly admitted freshmen, most complete a mathematics course in each grade from 9th through 12th. . . Traditionally, most entering college freshmen have taken pre-calculus and often calculus; however, other advanced courses such as statistics and discrete mathematics can also deepen students understanding of mathematics.