Jaunita wrote, I think from Namibia with this question, that elicited that answer! Could you please give and explain to m the arithmetic formula to work out Mean, Mode and Median. I'm study at the moment but can't understand the formula. Thanks Jaunita Hello Jaunita, The arithmetic formula for each of the mean, the median and the mode are fairly simple and with a bit of practice they will be easy for you. The mean is the same as the arithmetic mean and is what we normally use when we calculate an average figure add together all the numbers you have and divide them by the total number of numbers For example, find the arithmetic mean of 6,9,2,6,3,8,9,2,4,6: 6+9+2+6+3+8+9+2+4+6 ÷ 10 (because there are 10 numbers altogether) = 55 ÷ 10 = 5.5 The mode is the number in a set of numbers that occurs most often: that is, in a set of numbers we might find that some numbers occur more than once and the mode is the one that there are most of. For example, from the list we just saw 6,9,2,6,3,8,9,2,4,6 the frequencies of each number are 2 = 2 3 = 1 4 = 1 6 = 3 8 = 1 9 = 2 Since there are more of number 6 than any other number, the mode is number 6 The median is the middle value in a set, or list, of values. To find the median we need to put the list in order and then find the number in the middle. For example, using the list we have already used, we find: 2 2 3 4 6 6 6 8 9 9 It’s best when there is an odd number of numbers as we can see here when we have 10 numbers and really there is no number in the middle. What we do now is to take the numbers on either side of the middle, add them together and divide them by 2 … easy in this case: (6 + 6)/2 = 6 So the median number is 6. I hope that’s clear Juanita. Try finding the mean, median and mode from these lists, Juanita and confirm the answers I have given below. 6 8 5 4 8 8 3 7 7 6 mean 6.2 median 6.5 mode 8 And again: 9 6 12 9 6 7 6 12 17 20 17 mean 11 median 9 mode 6 Where in the world are you Jaunita? Just interested. DW