แบบทดสอบเรื่องสถิติ
Interactive Video
•
Mathematics
•
8th Grade
•
Hard
tamonwan seeta
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
จากข้อมูลการสอบวิชาคณิตศาสตร์ของนักเรียน 10 คน มีคะแนนดังนี้: 75, 85, 90, 80, 70, 95, 60, 88, 78, 82 คะแนนเฉลี่ยของนักเรียนคือเท่าไหร่
78
80
82
85
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
มูลค่าฐานข้อมูลเป็นลำดับตามนี้: 5, 7, 9, 7, 10, 7, 8 ค่ามัธยฐานของข้อมูลนี้คือเท่าไหร่?
7
8
9
10
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ค่าเฉลี่ยของข้อมูลที่มีคะแนน 10, 12, 14, 16, 18 คือเท่าไหร่?
14
15
16
18
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
จากข้อมูลการสอบของนักเรียน 20 คน ในวิชาคณิตศาสตร์ มีคะแนนดังนี้:
60, 65, 70, 70, 75, 80, 80, 80, 85, 90, 90, 95, 60, 70, 75, 80, 85, 90, 75, 70
จงหาค่าฐานนิยมของข้อมูลนี้ (คะแนนที่ปรากฏบ่อยที่สุด)
70
75
80
90
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