Online Test — Statistics
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
easy
Which is a statistical question?
How old am I?
How tall is the school?
What are the heights of students?
What is 5+3?
Explanation: Heights vary by student
Question 2 of 10
easy
Find mean: 10, 20, 30, 40
20
25
30
35
Explanation: Sum=100, 100÷4=25
Question 3 of 10
easy
Find median: 3, 7, 2, 9, 5
3
5
7
6
Explanation: Order:2,3,5,7,9 → middle=5
Question 4 of 10
easy
Find mode: 2,4,2,6,2,8
2
4
6
8
Explanation: 2 appears 3 times (most)
Question 5 of 10
medium
Find range: 15, 22, 8, 30, 12
8
15
22
30
Explanation: Max=30, Min=8, Range=22
Question 6 of 10
medium
In a box plot, the box contains what %?
25%
50%
75%
100%
Explanation: Box = Q1 to Q3 = middle 50%
Question 7 of 10
medium
Histogram bar height shows?
Total data
Frequency
Range
Average
Explanation: Height = count in that bin
Question 8 of 10
medium
Find median: 4,8,6,10,2
4
6
8
10
Explanation: Order:2,4,6,8,10 → median=6
Question 9 of 10
medium
Mean of 5 numbers is 12. Sum?
48
60
72
17
Explanation: 12×5=60
Question 10 of 10
medium
Bimodal means:
1 mode
2 modes
No mode
3 modes
Explanation: Bi = two