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Data Praktikan
Dial Indicator
Pengukuran dengan Dial Indicator
Avg = ∑i=1
n❑Xi
n
= 665+664+668+665+672+666+665+6658
= 666.25
S2 = ∑i=1
n (Xi−XAvg)n−1
=(665−666.25)+(664−666.25)+(668−666.25)+(665−666.25)+(672−666.25)+(666−666.25)+(665−666.25)+(665−666.25)
8
= 0
Pengukuran dengan Bevel Protactor
Bevel Protactor
Avg = ∑i=1
n❑Xi
n=
141.083+140.83+141.83+140+139.333+140.5+140.5+140.258
= 140.44
S2 = ∑i=1
n (Xi−XAvg)n−1
=141.083+140.83+141.83+140+139.333+140.5+140.5+140.25
8
= 140.44
Pengukuran dengan Mikrometer Sekrup
Mikrometer Sekrup
Avg = ∑i=1
n❑Xi
n
= 665+664+668+665+672+666+665+6658
= 666.25
S2 = ∑i=1
n (Xi−XAvg)n−1
= 14 [(665-666.25)+(664-666.25)+(668-666.25)+(665-666.25)+(672-666.25)+(666-666.25)+(665-666.25)+(665-666.25)]= 0
Pengukuran Jangka Sorong Kedalaman
Jangka Sorong Kedalaman
Avg = ∑i=1
n❑Xi
n
= 665+664+668+665+672+666+665+6658
= 666.25
S2 = ∑i=1
n (Xi−XAvg)n−1
= 14 [(665-666.25)+(664-666.25)+(668-666.25)+(665-666.25)+(672-666.25)+(666-666.25)+(665-666.25)+(665-666.25)]= 0
Pengukuran Jangka Sorong Diameter Dalam
Jangka Sorong Diameter Dalam
Avg = ∑i=1
n❑Xin
= 665+664+668+665+672+666+665+6658
= 666.25
S2 = ∑i=1
n (Xi−XAvg)n−1
= 14 [(665-666.25)+(664-666.25)+(668-666.25)+(665-666.25)+(672-666.25)+(666-666.25)+(665-666.25)+(665-666.25)]= 0
Pengukuran Jangka Sorong Diameter Luar
Jangka Sorong Diameter Luar
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