Sunday 22 June 2014

Homework

Mean: Mean is nasty, the meanest one to do. What you have to do is add up all the numbers and divide it by the numbers added. e.g 4, 3, 2.    4 + 3 + 2 = 9  now count how many of the numbers you added then divide 9 by 3 which = 3.

Median: Median reminds me of the word middle. What you have to do is, line up all the numbers from smallest to biggest and find the middle number. e.g 1,3,6,7,4,9,4,5,6,1,9 put all the numbers in order 1,1,3,4,4,5,6,6,7,9,9 now find the middle number which is 5 and that is your answer.

Mode: Mode almost sounds like most so that is how I remember it. You have to find the most popular number. e.g 1,9,9,4,6,4,4,6 now sort them from smallest to biggest 1,4,4,4,6,6,9,9 now find the most popular which is 4.

Range: Range reminds me of the mountains or mountain ranges, there are high mountains and there are low mountains. You have to find the smallest number and subtract it from the biggest number to find your range. e.g  10   |   20   |   30   |   40   40-10=30 that is your range.


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