This document contains statistical data about a class including the name, contact details, and scores of 20 students broken into intervals. It calculates the mean, median, and mode of the scores. The mean score is 14.75. The median score is 15.833. The mode is the interval of 13-17 which had 4 students.

1. Nama
Sms/Unit
Jrs/Prodi
Email
No. Hp
:
:
:
:
:
Wanda Azmi
III/4
Tarbiyah/PMA
respect_wanda@yahoo.com
+6285207089663
Kelas Interval
3–7
8 – 12
13 – 17
18 – 22
23 - 27
Jumlah
6
2
4
3
5
20
5
10
15
20
25
30
20
60
60
125
295
Rata-rata Hitung
=
=
= 14.75
Rata-rata Hitung untuk Cording
Kelas Interval
3–7
8 – 12
13 – 17
18 – 22
23 - 27
Jumlah
=
6
2
4
3
5
20
+
= 20 + 5
= 20 + 5 (-1.05)
= 20 + (-5.25)
= 14.75
5
10
15
20
25
-3
-2
-1
0
1
-18
-4
-4
0
5
-21
30
20
60
60
125
295

2. Rata-rata Harmonik
Kelas Interval
3–7
8 – 12
13 – 17
18 – 22
23 - 27
Jumlah
6
2
4
3
5
20
5
10
15
20
25
1.2000
0.2000
0.2667
0.1500
0.2000
2.0167
Jadi
=
=
= 9.917191
Modus
Kelas Interval
3–7
8 – 12
13 – 17
18 – 22
23 - 27
= 12.5
=5
=4–2=2
=4–3=1
= 12.5 + 5
= 12.5 + 5 (0.667)
= 12.500 + 3.333
= 15.833
6
2
4
3
5
5
10
15
20
25