Hi there!
Mean:
To find the mean, we need to find the sum of all of the numbers in the set and divide it by the amount of numbers.
In this case, the numbers are 3, 3, 4, 5, 5 and 9, and there are 6 numbers.
3 + 3 + 4 + 5 + 5 + 9
= 29
29 / 6
= 4 5/6
Median:
To find the median, we need to arrange the numbers in order (in this case, they are already arranged for us) and find the middle number. If there are an even amount of numbers, we would find the average of the middle two numbers.
In this case, the middle two numbers are 4 and 5. The mean of 4 and 5 is 4.5.
4.5
Hope this helps!
