Lesson details

Key learning points

  1. In this lesson, we will interpret bar charts, including finding the mean from a bar chart.

Licence

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3 Questions

Q1.
The questions in the quiz are about the table below, which is a frequency table showing the results of a survey which asked how many siblings students in a class had. First, how many people answered the survey?
15
Correct answer: 17
32
5
Q2.
What is the mode number of siblings?
Correct answer: 1
2
5
6
Q3.
What is the median number of siblings?
Correct answer: 2
2.5
3
3.5

5 Questions

Q1.
The questions in this quiz all relate to the bar chart below, which shows the scores achieved by a class in a test. First, how many people scored 15 marks?
1
15
Correct answer: 2
5
Q2.
What was the mode number of marks?
Correct answer: 17
2
4
No mode
Q3.
What was the range?
12
Correct answer: 17
2
4
Q4.
What was the median (it may be useful to draw a frequency table, or to write out all the data)?
13.5
15
Correct answer: 15.5
16
Q5.
What was the mean (it may be useful to draw a frequency table, and you may need a calculator to work it out)?
Correct answer: 12.25
18.375
19
24.5

Lesson appears in

UnitMaths / Univariate data