[methods] fix colours

diff --git a/methods/statistics.pdf b/methods/statistics.pdf
index 991c4494fa9d2ab8f5fd0a7b74007e69b63034d4..27e441e8af8d9423ddf41c60a083f33fe1be90cc 100644 (file)
Binary files a/methods/statistics.pdf and b/methods/statistics.pdf differ