rata rata 4 nilai ujian yana 80 jika modus dari nilai ujian tersebut 78 dan nilai terkecil 77 maka nilai ujian yana yg paling tinggi adalah
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Materi : Data dan Statistika
4 ujian = 80
modus = 78 ( 2 data )
nilai terkecil = 77 ( 1 data )
\___________________/
x + 2( 78 ) + 77 = 4( 80 )
x + 156 + 77 = 320
x + 233 = 320
x = 320 - 233
{ x = 87 }
Semoga bisa membantu
[tex] \boxed{ \colorbox{lightblue}{ \sf{ \color{blue}{ Answer By\:BlueBraxGeometry}}}} [/tex]
= x + 2(mo.2) + mo.1 = 4(Nilai 4 Ujian)
= x + 2(78) + 77 = 4(80)
= x + 156 + 77 = 320
= x + 233 = 320
= x = 320 - 233
= x = 87
[answer.2.content]
