Section 1 - Record, organise and represent data. Flashcards
What is the definition of data?
Data refers to facts and statistics collected for reference or analysis.
True or False: A dataset can only consist of numerical values.
False
What is the purpose of organizing data?
To make it easier to analyze and interpret.
Fill in the blank: A __________ is a visual representation of data.
chart
What type of graph is best for showing parts of a whole?
Pie chart
Multiple Choice: Which of the following is NOT a method of data representation? A) Bar Graph B) Line Chart C) Pie Chart D) Table Tennis
D) Table Tennis
What is a frequency table?
A table that displays the frequency of various outcomes in a dataset.
True or False: A histogram is similar to a bar graph but is used for continuous data.
True
What is the median of a dataset?
The middle value when the data is arranged in ascending order.
Multiple Choice: Which measure of central tendency is affected by extreme values? A) Mean B) Median C) Mode
A) Mean
What does it mean to ‘record data’?
To capture and document information for later analysis.
Fill in the blank: The __________ is the value that appears most frequently in a dataset.
mode
True or False: Data can only be represented in graphical form.
False
What is the range of a dataset?
The difference between the highest and lowest values.
Multiple Choice: Which of the following is a qualitative data type? A) Height B) Hair Color C) Age
B) Hair Color
What is an outlier?
A value that is significantly higher or lower than the other data points in a dataset.
Fill in the blank: To represent data visually, we often use __________.
graphs
True or False: A scatter plot is used to show the relationship between two quantitative variables.
True
What is the first step in the data analysis process?
Collecting the data.
Multiple Choice: Which graph is best for showing trends over time? A) Pie Chart B) Line Graph C) Histogram
B) Line Graph
