standard error mean vs standard deviation

کوتاه

6:49

6:40

8:41

12:32

7:55

7:25

4:43

12:33

31:19

8:21

4:07

5:04

2:13

11:35

5:33

5:32

3:12

21:21

3:19

2:50

کوتاه

10:17

کوتاه

2:28

10:20

12:07

1:30

کوتاه

3:27

24:27

32:12

2:03

4:50

6:20

12:16

2:37

17:59

1:35