[methods] clean up

diff --git a/methods/statistics.pdf b/methods/statistics.pdf
index 8fb6a8999330440b7042bd61bb14ed80cbdaaec6..27e441e8af8d9423ddf41c60a083f33fe1be90cc 100644 (file)
Binary files a/methods/statistics.pdf and b/methods/statistics.pdf differ