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Data berikut merupakan nilai ujiian Mata Kuliah Pengantar Statistika Bisnis dari 34 Mahasiswa

71
75
57
88
64
80
75
82
90

68
90
88
71
75
71
81
81
48

82
72
62
68
74
79
84
75
57

75
75
68
65
68
75
80

1.Buatkan tabel distribusi frekuensi
2.Buatkan tabel distribusi frekuensi kumulatifnya

Data berikut merupakan nilai ujiian Mata Kuliah Pengantar Statistika Bisnis dari $34$ Mahasiswa $\newline$ \begin{tabular}{lllllllll} $\newline$ $71$ & $75$ & $57$ & $88$ & $64$ & $80$ & $75$ & $82$ & $90$ \\ $\newline$ $68$ & $90$ & $88$ & $71$ & $75$ & $71$ & $81$ & $81$ & $48$ \\ $\newline$ $82$ & $72$ & $62$ & $68$ & $74$ & $79$ & $84$ & $75$ & $57$ \\ $\newline$ $75$ & $75$ & $68$ & $65$ & $68$ & $75$ & $80$ & & $\newline$ \end{tabular} $\newline$ $1$ .Buatkan tabel distribusi frekuensi $\newline$ $2$ .Buatkan tabel distribusi frekuensi kumulatifnya

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Find trigonometric functions using a calculator

Full solution

Q. Data berikut merupakan nilai ujiian Mata Kuliah Pengantar Statistika Bisnis dari

34

Mahasiswa

\newline

\begin{tabular}{lllllllll}

\newline

71

&

75

&

57

&

88

&

64

&

80

&

75

&

82

&

90

\\

\newline

68

&

90

&

88

&

71

&

75

&

71

&

81

&

81

&

48

\\

\newline

82

&

72

&

62

&

68

&

74

&

79

&

84

&

75

&

57

\\

\newline

75

&

75

&

68

&

65

&

68

&

75

&

80

& &

\newline

\end{tabular}

\newline

1

.Buatkan tabel distribusi frekuensi

\newline

2

.Buatkan tabel distribusi frekuensi kumulatifnya

Organize Data: First, we need to organize the data into a frequency distribution table. We'll create intervals (also known as classes) for the scores and then count how many scores fall into each interval.
Choose Intervals: Let's choose intervals of size $10$ , starting from $50$ and ending at $90$ , since the lowest score is $48$ and the highest is $90$ . The intervals will be: $50-59$ , $60-69$ , $70-79$ , $80-89$ , $90-99$ .
Count Scores: Now, we count how many scores fall into each interval. For $50-59$ , we have $2$ scores ( $57, 57$ ). For $60-69$ , we have $6$ scores ( $64, 68, 62, 68, 65, 68$ ). For $70-79$ , we have $15$ scores ( $71, 75, 75, 71, 75, 71, 72, 74, 79, 75, 75, 75, 75, 75, 75$ ). For $80-89$ , we have $2$ $0$ scores ( $2$ $1$ ). For $2$ $2$ , we have $2$ scores ( $2$ $4$ ).
Frequency Distribution: The frequency distribution table will look like this: $\newline$ | Interval | Frequency | $\newline$ |----------|-----------| $\newline$ | $50-59$ | $2$ | $\newline$ | $60-69$ | $6$ | $\newline$ | $70-79$ | $15$ | $\newline$ | $80-89$ | $9$ | $\newline$ | $90-99$ | $2$ |
Create Cumulative Frequency: Next, we'll create the cumulative frequency distribution table by adding the frequencies of each interval to the sum of the frequencies of all previous intervals.
Create Cumulative Frequency: Next, we'll create the cumulative frequency distribution table by adding the frequencies of each interval to the sum of the frequencies of all previous intervals. Starting with the first interval, the cumulative frequency for $50-59$ is $2$ . For $60-69$ , it's $2$ (previous) $+ 6 = 8$ . For $70-79$ , it's $8$ (previous) $+ 15 = 23$ . For $80-89$ , it's $23$ (previous) $2$ $0$ . For $2$ $1$ , it's $2$ $2$ (previous) $2$ $3$ .
Create Cumulative Frequency: Next, we'll create the cumulative frequency distribution table by adding the frequencies of each interval to the sum of the frequencies of all previous intervals. Starting with the first interval, the cumulative frequency for $50-59$ is $2$ . For $60-69$ , it's $2$ (previous) $+ 6 = 8$ . For $70-79$ , it's $8$ (previous) $+ 15 = 23$ . For $80-89$ , it's $23$ (previous) $2$ $0$ . For $2$ $1$ , it's $2$ $2$ (previous) $2$ $3$ . The cumulative frequency distribution table will look like this: $\newline$ | Interval | Cumulative Frequency | $\newline$ |----------|----------------------| $\newline$ | $50-59$ | $2$ | $\newline$ | $60-69$ | $8$ | $\newline$ | $70-79$ | $23$ | $\newline$ | $80-89$ | $2$ $2$ | $\newline$ | $2$ $1$ | $60-69$ $3$ |

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