Q. Latihan Soal- Berikut diberikan data mengenai hasil ujian tengah semester, Mata Kuliah Statistika dari mahasiswa Program D4 Perhotelan UDINUS. Susun data dalam tabel dist frekuensi!\begin{tabular}{llllllllll}65 & 72 & 67 & 82 & 72 & 91 & 67 & 73 & 71 & 70 \\85 & 87 & 68 & 86 & 83 & 90 & 74 & 89 & 75 & 61 \\65 & 76 & 71 & 65 & 91 & 79 & 75 & 69 & 66 & 85 \\95 & 74 & 73 & 68 & 86 & 90 & 70 & 71 & 88 & 68\end{tabular}
List all scores: Step 1: List all the scores to see what we're working with. 65,72,67,82,72,91,67,73,71,70,85,87,68,86,83,90,74,89,75,61,65,76,71,65,91,79,75,69,66,85,95,74,73,68,86,90,70,71,88,68
Sort scores: Step 2: Sort the scores from smallest to largest to make it easier to count.Sorted scores: 61,65,65,65,66,67,67,68,68,68,69,70,70,71,71,71,72,72,73,73,74,74,75,75,76,79,82,83,85,85,86,86,87,88,89,90,90,91,91,95
Count scores between 70 and 90: Step 3: Count the scores that are between 70 and 90. Count: 70, 70, 71, 71, 71, 72, 72, 73, 73, 901, 901, 903, 903, 905, 906, 907, 908, 909, 909, 701, 701, 703, 704, 705, 90, 90 (Note: 90 is included because the question says "between 70 and 90" which usually includes the end points in statistics)
Consider excluding 90: Step 4: Realize that including 90 might be a mistake because "between" could mean strictly between 70 and 90, not including 90.