statistik

Nama : Raihanatun Nisa

Lok/smt : G / IV

PT : STAI Kuala Kapuas

Tugas : 3 (remedial hari selasa tgl 02-04-2013)

Nilai       f              fkb

46           15           73 = N

45           5              58

44           5              53

43           1              48

42           3              47

41           4              44

40           5              40

39           6              35

38           3              29

37           5              26

36           6              21

35           15           15

Q1 = ¼ N = ¼ x 73 = 18,25

ℓ = 35,50    fi = 6   fkb = 15

Q1 = ℓ + {(1/4 N – fkb)/ fi} = 35,50 + {(18,25-15) / 6}  = 35,50 + 0,5416 = 36,0416

Q2 = 2/4 N =2/4 x 73 = 36,5

ℓ = 39,50    fi = 5   fkb = 35

Q1 = ℓ + {(2/4 N – fkb) / fi} = 39,50 + {(36,5-35) / 5}  = 39,50 + 0,3 = 39,8

Q3 = 3/4 N = 3/4 x 73 = 54,75

ℓ = 44,50    fi = 5   fkb = 53

Q1 = ℓ + {(1/4 N – fkb)/ fi} = 44,50 + {(54,75-53) / 5}  = 44,50 + 0,35 = 44,85