Types of Data
The heights of people in the classroom
What is numerical data
Used to represent categorical data
What is a column graph
bakers dozen
What is 13
The second column of the frequency tables (usually)
What is the tally
The (numerical) average score in a study of data
mean
Color of peoples eyes in Year 9
What is categorical data
Used to represent numerical data
What is a histogram
10 = ?
What is 1
An addition of each of the parts of the data in the frequency table that builds on from the one before
What is cumulative frequency
This must be done prior to working out the median of a data set
ordering the data in ascending order
Post codes
What are categorical data
When all the data on the graph is spread out evenly
What is a symmetrical graph
the practice or science of collecting and analysing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample.
Statistics
what is being calculated when the sum of frequency times the scores is divided into the total number of frequency?
mean
When more two modes exist in a data set
What is bi-modal
What are categorical - ordinal data
When majority of the data in a graph is towards the left hand side
What is positively skewed
100 divided by 1/2
what is 200
A section of the frequency table that includes more than one value
What is class interval (or intervals)
Calculate the median of the following data:
2, 3, 7, 5, 8
Mean = 5
The number of recycling bins at the school
What is Numerical - discrete data
Most appropriate graph to use when we have two sets of data and want to display them next to each other
Back-to-back stem and leaf plot
12 sided polygon
dodecagon
Highest take-away lowest
range