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ใบงาน เรื่อง สถิติง่ายๆ เพื่อการวิจัย
1.ความถี่ คือ
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2.ร้อยละ คือ
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3.ค่าเฉลี่ย คือ
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ชื่อ................................................. นามสกุล..................................................รหัสนักศึกษา.................................
