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mata kuliah mestat departement sta diselenggarakan dalam 2 kelas paralel. dari kelas paralel 1 yang memiliki rataan nilai ujian akhir 74, 16 mahasiswa diwawancara tentang

mata kuliah mestat departement sta diselenggarakan dalam 2 kelas paralel. dari kelas paralel 1 yang memiliki rataan nilai ujian akhir 74, 16 mahasiswa diwawancara tentang nilai ujian akhirnya. sedangkan dari kelas paralel 2 yang memiliki rataan nilai ujian akhir 78 diwawancara 9 mahasiswa. dari wawancara kelas paralel 1 didapatkan simpangan baku 4, sedangkan dari kelas paralel 2 didapatkan simpangan baku 3. berapa peluang bahwa rataan nilai ujian akhir paralel 2 lebih beaar dari paralel 1

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