In statistics, this is the symbol for the "Variance"
the mean is important in statistics because you will find out your average and can compare that mean to other things..
What do you mean by statistics? Re-Ask the question.
They are statistics of central tendency.
Statistics is the study of collecting , organizing , and interpreting data!
the mean is affected by outliers
Examples of descriptive statistics are mean, median, mode, and midrange.
The mean is called a non-resistant measure in statistics.
"According to statistics."
You might be talking about the A Level subject (actually, a part of the subject) "Statistics 2".
The direction in which the trend analysis points.
Since this is regarding statistics I assume you mean lower case sigma (σ) which, in statistics, is the symbol used for standard deviation, and σ2 is known as the variance.
In statistics, n is usually used to mean the number of observations or measurements which you have. So n = 7 means you have 7 observations or meadurements.
Understanding the mean in research and what it represents
descriptive statistics-quantitavely describe the main features of a collection of data. Descriptive statistics are distinguished from inferential.Statistics(or inductive statistics),in that descriptive statistics aim to summarize a data set,rather than use the data to learn about the population that the data are thought to represent.
Simple Random Sample