statistics

Question 1

name the descriptive statistics

Answer 1

mean, mode, median= average results, the range= spread of scores, frequency data= how often smth happens shown in tables, histograms, bar charts, distribution

Question 2

define mean, strengths&weaknesses

Answer 2

the mathematical average
Calculated by adding up all the numbers scores in the data set and dividing by the number of scores that there are
+makes use of all available data, most powerful measure of central tendency
- used with caution, may be less meaningful

Question 3

define mode, strengths&weaknesses

Answer 3

The most common value or values in a set of data
+ Sometimes makes more sense to use it with certain scores ​
- There can be more than one mode in a set of data ​

Question 4

define median, strengths&weaknesses

Answer 4

The middle value in a set
of data when they have been put in order from lowest to highest.
+ Sometimes makes more sense to use it with certain scores where there are no extremes.​
-it does not use all the scores

Question 5

define range strengths&weaknesses

Answer 5

A simple measure of the
spread/dispersion in a set of data. The lowest score is subtracted from
the highest score
+ quick to calculate ​
- Doesn’t take individual scores into account ​