Online Test — Line Plots & Mean
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
hard
On a plot, value 7 has 3 Xs and value 8 has 1 X. The range (biggest − smallest value) is…
1
2
3
7
Explanation: 8 − 7 = 1.
Question 2 of 10
easy
The mean of 10 and 20 is…
10
15
30
20
Explanation: (10 + 20) ÷ 2 = 15.
Question 3 of 10
medium
The mode of 4, 4, 4, 6 is…
4
6
14
18
Explanation: 4 appears most often.
Question 4 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 5 of 10
easy
The mean is also called the…
average
biggest
smallest
middle
Explanation: Mean = average.
Question 6 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 7 of 10
medium
A plot has 2, 3 and 1 Xs above values 1, 2 and 3. Total data points?
5
6
3
2
Explanation: 2 + 3 + 1 = 6.
Question 8 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 9 of 10
easy
The mean of 5, 5, 5 is…
3
5
15
10
Explanation: (5 + 5 + 5) ÷ 3 = 5.
Question 10 of 10
hard
If no number repeats in a list, the mode is…
the first number
the largest
there is no mode
the middle
Explanation: With no repeats there is no mode.