19.12 Hoạt động 1 Thống kê
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Nguyễn Hữu Thạnh
Used 2+ times
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính số trung bình của dãy số liệu sau: 4, 8, 6, 5, 3.
5.5
6.0
4.5
5.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm mốt của dãy số liệu sau: 2, 3, 3, 5, 7, 8, 8, 8, 9.
5
8
3
9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Xác định trung vị của dãy số liệu sau: 1, 3, 3, 6, 7, 8, 9.
9
7
3
6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính tứ phân vị Q1 và Q3 của dãy số liệu sau: 10, 20, 30, 40, 50, 60, 70, 80.
Q1 = 25, Q3 = 65
Q1 = 30, Q3 = 60
Q1 = 15, Q3 = 75
Q1 = 20, Q3 = 70
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính khoảng biến thiên của dãy số liệu sau: 15, 22, 8, 30, 25.
32
22
18
26
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính phương sai của dãy số liệu sau: 5, 10, 15, 20, 25.
25
30
40
50
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính độ lệch chuẩn của dãy số liệu sau: 12, 15, 20, 22, 30.
8.50
10.25
6.05
5.00
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