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Nur Fitri
27 December 2021

mean = £fx/£f = (143.1)+(148.4)+(153.5)+(158.15)+(163.7)+(168.6)+(173.2)/40 = 6365/40 = 159, 125. ket: £fx = jumlah nilai tengah dikali frekuensi £f. = jumlah seluruh frekuensi

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Nur Fitri
27 December 2021

mean = £fx/£f = (143.1)+(148.4)+(153.5)+(158.15)+(163.7)+(168.6)+(173.2)/40 = 6365/40 = 159, 125. ket: £fx = jumlah nilai tengah dikali frekuensi £f. = jumlah seluruh frekuensi

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Nur Fitri
27 December 2021

mean = £fx/£f = (143.1)+(148.4)+(153.5)+(158.15)+(163.7)+(168.6)+(173.2)/40 = 6365/40 = 159, 125. ket: £fx = jumlah nilai tengah dikali frekuensi £f. = jumlah seluruh frekuensi

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Nur Fitri
27 December 2021

mean = £fx/£f = (143.1)+(148.4)+(153.5)+(158.15)+(163.7)+(168.6)+(173.2)/40 = 6365/40 = 159, 125. ket: £fx = jumlah nilai tengah dikali frekuensi £f. = jumlah seluruh frekuensi

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Deszlaria Putri Nindiatma
28 October 2021

Rumusnya x bar = sigma fixi dibagi sigma fi = 6.365/40= 159,125 (158+1,125) Xi(nilai tengah dari data tersebut) Sigma fi (jumlah nilai frekuensi)

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