Q. Select the outlier in the data set.9,69,79,80,81,93,97,99
Identify Outlier: To identify the outlier in the data set, we first need to look at the numbers and see if there is a value that is significantly different from the others. The data set is: 9,69,79,80,81,93,97,99.
Observe Data Set: By observing the data set, we can see that the number 9 is much smaller than all the other numbers, which are all close to each other and within the range of 69 to 99. This suggests that 9 is the outlier.
Confirm Outlier: To confirm that 9 is the outlier, we can calculate the mean of the data set without the suspected outlier and compare it to the mean with the outlier included. However, since the difference between 9 and the other numbers is so large, it is clear that 9 is the outlier without needing to do any calculations.