Question

Tentukan kuartil bawah dari data tersebut​

Answer 1

Jawaban:

Penyelesaian :

[tex]\begin{gathered}\boxed{\begin{array}{c|c|c}\sf Nilai& \sf Frekuensi & \sf fx\\\hline 23 - 25 & 11&11 \\\hline 26 - 28&8&19 \\\hline 29 - 31& 1 3 &32\\\hline 32 - 24& 7&39\\\hline 35 - 37& 9&48 \\\hline &n = 48&\end{array}}\end{gathered}[/tex]

Tentukan kuartil bawah dari data tersebut ...

• Kuartil bawah [tex] \sf Q_{1} [/tex]

[tex]\begin{aligned}\sf Q_{1}&= \sf tb + \frac{ \frac{1}{4}(n) - fx }{fq} \times p \\&= \sf 28,5 + \frac{ \frac{1}{4} (48) - (32 - 13)}{13} \times 3 \\ &= \sf 28,5 + \frac{24 - 19}{13} \times 3 \\ &= \sf 28,5 + \frac{5}{13} \times 3 \\ &= \sf 28,5 + \frac{15}{13} \\ &= \sf 28,5 + 1,15 \\ &= \sf \red{29,65}\end{aligned}[/tex]

'조슈아' (Svt)