Answer:
The range is the difference between the highest and lowest values in a set of data. In this case, the range is 15 - 1 = 14.
The interquartile range (IQR) is the difference between the third and first quartiles of a set of data. The first quartile (Q1) is the middle value of the lower half of the data, and the third quartile (Q3) is the middle value of the upper half of the data. In this case, the IQR is Q3 - Q1 = 12 - 5 = 7.
There are no outliers in this data set. An outlier is a data point that is significantly different from the rest of the data points. In this case, all of the data points are within 14 of the mean, which is 8.5. Therefore, there are no outliers.
Here is a summary of the range and IQR of the data set:
Range: 14
IQR: 7
Explanation: