41-45,46-50,51-55,56-60,61-65,66-70,71-75 dan frekuensi 10,20,2842,24,18,8 hitunglah median,modus,q1,q2,q
Matematika
tati64
Pertanyaan
41-45,46-50,51-55,56-60,61-65,66-70,71-75 dan frekuensi 10,20,2842,24,18,8 hitunglah median,modus,q1,q2,q
1 Jawaban
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1. Jawaban SyifaZeehni
nilai frekuensi f.kum
41-45 10 10
46-50 20 30
51-55 28 58
56-60 42 100
61-65 24 124
66-70 18 142
71-75 8 150
Median :tb + [1/2n-fk] x c
---------
f
:55,5 + [1/2 x150 - 58] x 5
--------------------
42
:55,5 + [17/42] x5
:55,5 + [85/42]
:55,5 + 2,02
:55,702
modus:tb + {d1/d1+d2} xc
:55,5 + {14/14+18} x5
:55,5 + {14/32} x 5
:55,5 + {70/32}
:55,5 + 2,18
:55,718