The Tear Maker
The purpose of statistics is this
To describe or infer
Simple count of how many cases in the
sample have a particular value for the variable in question
What is frequency count?
This equals the sum of all data points divided by the number of data points.
What is the Mean?
Highest Value minus Lowest Value is what
This describes how a score compares to other scores from the same set.
What is percentile?
This type of statistics organize / summarize the data
What is descriptive statistics?
This is a division of the proportion
What is percentage?
The measure of Central Tendency which is the point where half of the values are higher and half of the values are lower
What is the median?
This is the spread between numbers in a data set.
What is variance?
This shape is high in the middle, low in the "tails," and even on both sides of center.
What is Normal Distribution or a Bell Curve?
When investigators examine the relationship between two variables they are conducting this
What is bivariate statistics?
the frequency count (numerator) over the total
number of the sample (denominator); that is, the number of
cases with the specific value over the total number of cases.
What is proportion?
Most frequently occuring
What is the Mode?
When individuals' scores are clustered very close to the mean the variance is
what is small
When a data set has more values on the left or right side
What is skewed?
In descriptive statistics, these are the main features about distribution of data that researchers are interested in? (3 words )
Frequency, Central Tendency, Variance
Ask this question when determining the denominator
What group am I searching for an answer?
This is a single value that attempts to describe a set of data by identifying the central position within said data.
What is Central Tendency
This is the smallest a variance can be.
What is ZERO.
A z-score of -1.25 means this.
What is One and one quarter standard deviations below mean?
The main question that can be answered with univariate descriptive statistics is
How are the values for this variable
distributed?
This is the reason there may be conflicting reports
What is different denominators?
When determining the median, if there is an even number you do this
What is average the two middle numbers
A measure that is used to quantify the amount of variation or dispersion of a set of data values
What is standard deviation?
This is an example of univariate analysis.
What is Descriptive Statistics.