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Hasil pengukuran tinggi badan sekelompok siswa sebagai berikut. Tentukan simpangan kuartil data di atas.

Hasil pengukuran tinggi badan sekelompok siswa sebagai berikut.

Tentukan simpangan kuartil data di atas.

  1. ...space 

  2. ...space 

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R. Septa

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

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Pembahasan

Banyak data n = 30

Banyak data n = 30

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Letak space straight Q subscript 1 end cell equals cell data space ke short dash 1 fourth left parenthesis straight n plus 1 right parenthesis end cell row blank equals cell data space ke short dash 1 fourth left parenthesis 30 plus 1 right parenthesis end cell row blank equals cell data space ke short dash 1 fourth cross times 31 end cell row blank equals cell data space ke short dash 7 3 over 4 end cell end table end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight Q subscript 1 end cell equals cell straight x subscript 7 plus 3 over 4 left parenthesis straight x subscript 8 minus straight x subscript 7 right parenthesis end cell row blank equals cell 143 plus 3 over 4 left parenthesis 143 minus 143 right parenthesis end cell row blank equals 143 end table end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Letak space straight Q subscript 3 end cell equals cell data space ke short dash 3 over 4 left parenthesis straight n plus 1 right parenthesis end cell row blank equals cell data space ke short dash 3 over 4 left parenthesis 30 plus 1 right parenthesis end cell row blank equals cell data space ke short dash 3 over 4 cross times 31 end cell row blank equals cell data space ke short dash 23 1 fourth end cell end table end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight Q subscript 3 end cell equals cell straight x subscript 23 plus 1 fourth left parenthesis straight x subscript 24 minus straight x subscript 23 right parenthesis end cell row blank equals cell 150 plus 1 fourth left parenthesis 152 minus 150 right parenthesis end cell row blank equals cell 150 plus 1 half end cell row blank equals cell 150 comma 5 end cell end table end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Simpangan space kuartil end cell equals cell 1 half open parentheses straight Q subscript 3 minus straight Q subscript 1 close parentheses end cell row blank equals cell 1 half open parentheses 150 comma 5 minus 143 close parentheses end cell row blank equals cell 1 half cross times 7 comma 5 end cell row blank equals cell 3 comma 75 end cell end table end style 

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