Statistics

Statistics is all about numbers, is this true
why does one keep a set of numbers
do you know anything or place with a set of numbers
Why does the play whe outlet keep a set of previous play for the day?

Think of the grocery bill when you are buying items for a graduation or party?
A lot of common items are bought.
Information of interest will be which item cost the most money?
Which item do you have the most of?
How many different items do you have?
What item cost the least?
What item do you have the least of?


23 12 16 13 12 23 23 12 27 16 13 23 43 13 12 23 23 12 23 12 23 43 16 23 26 23 26

What information can you create or obtain from the numbers?

The different numbers are
27 numbers
23 12 16 13 27 43 (just 6 different numbers)
23 occurred the most (10 times)
27 occured the least ( 1 time)
23 occurred 10 times
12 occurred 6 times
16 occurred 3 times
13 occurred 3 times
etc

23 which occured the most is called the mode

median
1st arrange is a descending or ascending order
2nd remove one from both sides and the last one is the median. if two are left the average of the two numbers are found
the mean is the average of all the numbers

12 12 12 12 12 12 13 13 13 16 16 16 23 23 23 23 23 23 23 23 23 23 26 26 27 43 43