Online Test — Line Plots & Mean
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
hard
The median of 10, 20, 30, 40, 50 is…
20
30
40
150
Explanation: The middle of five ordered numbers is 30.
Question 2 of 10
easy
The mode of 5, 5, 7 is…
5
7
6
12
Explanation: 5 appears most often.
Question 3 of 10
hard
The mean of 6, 7, 8 is…
6
7
8
21
Explanation: 21 ÷ 3 = 7.
Question 4 of 10
medium
A plot has Xs: value 1 → 2, value 2 → 2, value 3 → 5. The mode is…
1
2
3
5
Explanation: Value 3 has the most Xs (5).
Question 5 of 10
easy
The mean of 5, 5, 5 is…
3
5
15
10
Explanation: (5 + 5 + 5) ÷ 3 = 5.
Question 6 of 10
medium
If a line plot has 10 Xs in total, there are how many data points?
5
10
20
1
Explanation: Each X is one data point → 10.
Question 7 of 10
easy
The mode is the value that appears…
most often
in the middle
first
largest
Explanation: Mode = the most frequent value.
Question 8 of 10
easy
If 5 Xs are above the number 4, how many data values are 4?
3
4
5
9
Explanation: 5 Xs = 5 data points.
Question 9 of 10
easy
If 3 Xs are above the number 2, how many data values are 2?
1
2
3
5
Explanation: Each X is one data point, so 3.
Question 10 of 10
medium
The mean of 10, 20, 30 is…
15
20
30
60
Explanation: 60 ÷ 3 = 20.