Mo. Rev. Stat. § 160.265: Suspension or expulsion, effect on attendance.

A student who is subject to suspension or expulsion as provided under this chapter or chapter 167 shall be counted as being in attendance for the following purposes:

(1) Calculating the attendance rate under the Missouri school improvement plan or any other similar school accountability system utilized by the department that utilizes student attendance as a metric of school performance; and

(2) Calculating a local education agency's weighted average daily attendance under section 163.031.