diff --git a/作业/数理统计-丁帮俊/第六周作业.pdf b/作业/数理统计-丁帮俊/第六周作业.pdf
new file mode 100644
index 0000000..cacc142
Binary files /dev/null and b/作业/数理统计-丁帮俊/第六周作业.pdf differ