[methods] clean up

diff --git a/methods/statistics.pdf b/methods/statistics.pdf
index 7a81019f20b07eedb87072e084bf7bf8305bb088..27e441e8af8d9423ddf41c60a083f33fe1be90cc 100644 (file)
Binary files a/methods/statistics.pdf and b/methods/statistics.pdf differ