Hello!
First of all, for our first scenario, the variation or spread of a data set is represented by the range. You subtract the largest and smallest number in the data set to find how much is in between.
Next, the mode is the number of piece of data that shows up the most in the data set, or the most common piece. Therefore, the most popular color is the mode.
As you can see, number 3 clearly says mean in the problem. This is the average cost.
The median is the middle number. Basically, it splits the data in half. If half of the students are 15 or higher, the middle age is 15, therefore, the median is 15.
Therefore, our answers are below.
2. Mode
3. Mean
1. Range
4. Median
I hope this helps!
