find the mean and median of the number 12, 9, 17, 15, 10 after each data value increases by 20%.
Well, it seems like these numbers are getting a bit of a boost! Let's give them some energy and calculate the new mean and median.
First, let's increase each number by 20%. After the boost, they become 14.4, 10.8, 20.4, 18, and 12. So these are our new values.
To find the mean, we add up all the new values and divide by the number of values. Adding them together, we get 75.6. Since we have 5 values, dividing 75.6 by 5 gives us a mean of 15.12.
Now onto the median! To find the median, we need to arrange the numbers in ascending order. After some sorting, the numbers are 10.8, 12, 14.4, 18, and 20.4.
Since we have an odd number of values, the median is simply the middle number, which is 14.4.
So, after the numbers got a 20% energy boost, the mean is 15.12, and the median is 14.4. They really got a "mean"ingful increase, didn't they?