calculate the mean and median 1,3,4,6,6,8,9,10,12

Mean: 6.5 repeating

Median: 6

 

In the mean you add all the numbers up then divide byhow many numbers there are.

In median you put the numbers in least to greatest order then find the middle number

Finally, in the mode you find the number that occurs the most.

The median is the middle value when you've sorted the numbers in order, so here that is 6.

 

The mean is obtained by adding them all up and dividing the result by how many there are:

(1+3+4+6+6+8+9+10+12)/9

.