the standard deviatin for the sampling distribution

4:07

32:12

6:56

48:43

19:32

3:52

18:02

28:12

8:21

8:33

2:54

کوتاه

8:12

38:04

کوتاه

6:59

4:20

17:50

9:50

5:54

6:13

44:44

1:22:57

2:25

2:25

2:46

1:55

2:56

4:49

کوتاه

17:22

10:46

1:31:31

7:10

1:31:28

20:02

4:25

4:15

12:07

9:29