Week 5 Flashcards
___ is a collection of raw facts.
Data
the mathematical term for average is the _____. it is found by adding all the scores together, and dividing by the number of scores
Mean
AN ____ is a score separated from the majority of scores, by being either much higher or much lower.
Outlier
____ is the study of data. it involves the collection and analysis of data which is used to make decisions about real life situations and problems.
Data analysis
______ data is also known as categorical or descriptive data. this data can be divided into categories.
Qualitative
A ___ chart is a simple way to display qualitative [descriptive] data to highlight relative frequencies {proportions}. it is shaped like a circle.
Pie
The ___ is the name given to each value in a data collection.
Score
____ is the plural of axis
axes
The ___ is the number of times a particular score occurs.
Frequency
____ charts are appropriate for qualitative data and discrete numerical data sets which have few distinct values. they are sometimes referred to as column graphs.
Bar
____ quantitative data refers to numerical data with separate values, which can be counted. there are no in-between values.
Discrete
A ___ table is used to organise data. two main columns in the table are the score (x) column, which is often labelled with the variable name, and the frequency (y) column
frequency distribution
The middle score is called the ____
Median
A ____ is a selected number of members of the population of interest. it is usually selected in such a way as to be representative of the entire population.
Sample
The ____ is the highest score minus the lowest score.
Range
A _____ or ____ is a diagram that shows data or information. Examples: Histogram, bar chart, tbe el bgaya m9a
Graph or plot
____ quantitative data refers to numerical data is measure, and has a continuous range of values.
Continuous
_____ data is also known as numerical data. this is data that has a numerical value.
Quantitative
The ____ is the horizontal across the page axis and the ____ is the vertical up and down axis
X-axis
Y-axis
The _____ refers to the units used on the axes of a graph.
Scale
if there are a lot of scores, they are grouped into regular classes or intervals so that they can be recorded in an efficient way in a frequency distribution table. this is called ___ daata.
Grouped
The ___ axis on a histogram does not need to commence at zero, but the classes shown on the axis should be equal widths.
Horizontal
The ____ axis on a histogram represents the frequency of observations. the frequency must start from zero.
Vertical
population data is data collected form the entire ____
Population
