Unit 2.6 - Distributions Flashcards
What is qualitative analysis?
Interviews and case studies, less involved with the numbers.
What is quantitative analysis?
Large samples and statistics, looking at the numbers.
What are the two schools of statistics? Explain each.
There is descriptive, which is describing the data of the sample. There is inferential, which is looking at the numbers to explain the populatio .
What do distributions look at?
They look at one variable.
What is central tendency? What are the measures of central tendency?
Where the centre of the curve is, there are three measures of central tendency. Mean, median, and mode.
What is the mean, median, and the mode?
The mean is the average score. The median is the middle score. And the mode is the most common score.
What are the three frequency distributions? What is a normal curve?
There is normal curve, which all three central tendency measures are the same. There is negatively and positively skewed curves.
What is a negatively skewed curve?
The tail is pointing towards negative side, the mean and then median move towards the left. Mode is highest point.
What is a positively skewed curve?
The tail is pointing towards the positive side. The mean and then the median move toward the right. Mode is the highest point.
What is variance?
Variance is the range around the mean. It is the spread or squish of a curve.
What is standard deviation?
It is the dispersion of the scores relative to the mean. The average spread of the variability. it is the typical distance from the mean - it is in distinct intervals.
