Stats
Statistics is the science of collecting, organizing and analyzing data or facts.
Mean - the average of a group of numbers. "The average teacher is mean"
Example: 1, 2, 5, 2, 6, 2
Step 1: Add the numbers together. They equal 18
Step 2: Divide the 18 by the number of numbers in the set of data. In our example there are 6 numbers. So, 18 divided by 6
Step 3: Solve. 18 divided by 6 is 3. 3 is the mean.
Median - the middle number of data or average of the two middle numbers in a collection of data when the data is arranged in order. Think of the grassy area between the lanes on a highway.
Example: 1, 2, 5, 2, 6
Step 1: Write the numbers from least to greatest
1, 2, 2, 5, 6
Step 2: Cross off the lowest number and the highest number. Keep doing that until only one number is left.
1, 2, 2, 5, 6
The median in this example is 2
Mode - the number that occurs most often in a collection of data. If you change the last two letters in mode to "st" you get the most. The mode is the most.
Example: 1, 2, 5, 2, 6, 2 The number 2 is the mode because it appears most often.
Range - the difference between maximum and minimum values.
Example: 12, 14, 6, 2, 8
14 is the highest number and 2 is the lowest number. You subtract: 14-2. The range is 12.
Statistics is the science of collecting, organizing and analyzing data or facts.
Mean - the average of a group of numbers. "The average teacher is mean"
Example: 1, 2, 5, 2, 6, 2
Step 1: Add the numbers together. They equal 18
Step 2: Divide the 18 by the number of numbers in the set of data. In our example there are 6 numbers. So, 18 divided by 6
Step 3: Solve. 18 divided by 6 is 3. 3 is the mean.
Median - the middle number of data or average of the two middle numbers in a collection of data when the data is arranged in order. Think of the grassy area between the lanes on a highway.
Example: 1, 2, 5, 2, 6
Step 1: Write the numbers from least to greatest
1, 2, 2, 5, 6
Step 2: Cross off the lowest number and the highest number. Keep doing that until only one number is left.
1, 2, 2, 5, 6
The median in this example is 2
Mode - the number that occurs most often in a collection of data. If you change the last two letters in mode to "st" you get the most. The mode is the most.
Example: 1, 2, 5, 2, 6, 2 The number 2 is the mode because it appears most often.
Range - the difference between maximum and minimum values.
Example: 12, 14, 6, 2, 8
14 is the highest number and 2 is the lowest number. You subtract: 14-2. The range is 12.