The following data points represent the number of campsites that are vacant at each campground park along the Shinacook River.
Answer 2 questions about the data points.
1. Sort the data from least to greatest.
18 15 11 9 12 17
2. Find the median number of campsites.
Answer (2)
To solve the problem, we will first sort the given data points from least to greatest and then find the median of the sorted data.
Step 1: Sort the data
The data points given are 18, 15, 11, 9, 12, and 17. Let's sort these numbers from least to greatest:
9
11
12
15
17
18
After sorting, the ordered data set is: 9, 11, 12, 15, 17, 18.
Step 2: Find the median
The median is the middle value in a list of numbers. Since there are 6 numbers in this sorted list, which is an even number, the median will be the average of the 3rd and 4th numbers:
3rd number is 12
4th number is 15
We calculate the median as follows:
Median = 2 12 + 15 = 2 27 = 13.5
Therefore, the median number of campsites vacant at the campground parks is 13.5.
The sorted data from least to greatest is 9, 11, 12, 15, 17, 18. The median of this data set, calculated as the average of the two middle numbers, is 13.5.
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