Tentukan mean, median dan modus dari data berikut: 20,21,17,15,18,24,21,25,21,15!

Pertanyaan

Tentukan mean, median dan modus dari data berikut:

$20,\;21,\;17,\;15,\;18,\;24,\;21,\;25,\;21,\;15$ !

Pembahasan Soal:

Mean (rata-rata)

$table attributes columnalign right center left columnspacing 0px end attributes row cell top enclose x end cell equals cell fraction numerator sum for x of over denominator n end fraction end cell row blank equals cell fraction numerator 15 plus 15 plus 17 plus 18 plus 20 plus 21 plus 21 plus 21 equals 24 plus 25 over denominator 10 end fraction end cell row blank equals cell 19 comma 7 end cell end table$

Median (nilai tengah)

$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 15 comma space 15 comma space 17 comma space 18 comma space 20 comma space 21 comma space 21 comma space 21 comma space 24 comma space 15 end cell row cell M e end cell equals cell 1 half open parentheses X subscript n over 2 end subscript plus X subscript n over 2 plus 1 end subscript close parentheses end cell row blank equals cell 1 half open parentheses X subscript 10 over 2 end subscript plus X subscript 10 over 2 plus 1 end subscript close parentheses end cell row blank equals cell 1 half open parentheses X subscript 5 plus X subscript 6 close parentheses end cell row blank equals cell fraction numerator 20 plus 21 over denominator 2 end fraction end cell row blank equals cell 20 comma 5 end cell end table$

Modus (nilai yang sering muncul)

Pembahasan terverifikasi oleh Roboguru

Dijawab oleh:

Y. Herlanda

Mahasiswa/Alumni STKIP PGRI Jombang

Terakhir diupdate 06 Oktober 2021