Shape
Data that has a consistent value across the distribution, e.g. people's birthdays by month.
What is uniform data?
The sum of the values in a data set divided by the number of items in that data set.
What is the mean?
A sampling method where individuals are selected based on ease of access, often leading to biased results.
What is convenience sampling?
Different factors we need to consider that may affect the values we get when taking a sample.
What are sources of variations?
Something Ms Dillon asked some students to throw at Mr Phillipps, but they chickened out.
What is a paper dart?
When a graph is very similar on each side as if reflected in a mirror.
What is symmetrical?
The middle value in a data set when ordered from least to greatest, or the sum of the 2 middle values divided by 2.
What is the median?
A sampling method where current participants also ask others to provide data.
What is snowball sampling?
The variation that occurs in a population due to inherent differences among individuals or elements.
What is natural variation?
Around $8 million a year.
What does NZ's highest-paid CEO earn?
Data that has a single peak.
What is unimodal?
The value that appears most frequently in a data set.
What is the mode?
A sampling method where every individual in the population has an equal chance of being selected.
What is simple random sampling?
The variation caused by inconsistencies in the process of collecting or recording data, including errors from instruments or observers.
What is measurement variation?
Something that Ms Dillon likes to tie around her dog's neck at Christmas time.
What is a bandana?
Data that has two peaks.
What is bimodal?
A measure of spread that covers the middle 50% of the data.
What is the interquartile range (IQR)?
A sampling method where individuals choose to participate.
What is voluntary response sampling?
Variation that arises when repeated measurements are taken at different times, showing fluctuations between those occasions.
What is occasion-to-occasion variation?
The place that Mr. Briden went hiking last year.
What is Greenland?
Data that has a tail to the right.
What is right-skewed?
A measure of spread that is centred around the mean.
What is the standard deviation?
A sampling method where the population is divided into subgroups and random samples are drawn from each subgroup.
What is stratified random sampling?
Variation that is deliberately introduced into an experiment or system to observe the effects of changes in certain variables.
The name of the boy who gets help from three toads to learn about mean, median, and mode.
What is Cody?