3, 4, 5, 6, 7, 8, 9, 10, 11
Average = Sum.Count = (6+9+7+10)/4 = 32/4 = 8 cm.
16 + 2 + 9 + 4 + 7 + 8 is = 18 + 9 + 4 + 7 + 8 = 27 + 4 + 7 + 8 = 31 + 7 + 8 = 38 + 8 = 46
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The mean in maths is a group of numbers added up, then divided by the amount of numbers there are. eg. 1 7 8 5 7 4 9 4. 1+7+8+5+7+4+9+4=45. 45 divided by 8= 5.625. Basically it is the average of the numbers.
Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7
4+8+9= 21 divide 21 by 3 (you have three numbers) = 7
7 + 8 + 10 + 11 = 36 / 4 = 9
3, 4, 5, 6, 7, 8, 9, 10, 11
Average = Sum.Count = (6+9+7+10)/4 = 32/4 = 8 cm.
Stanines of 1,2, and 3 are below average, 4, 5, and 6 are average, and 7, 8, and 9 are above average.
16 + 2 + 9 + 4 + 7 + 8 is = 18 + 9 + 4 + 7 + 8 = 27 + 4 + 7 + 8 = 31 + 7 + 8 = 38 + 8 = 46
The mean average is (9 + 15 + 4 + 8) ÷ 4 = 9; The median average is (8 + 9) ÷ 2 = 8.5 The mode average doesn't exist as each number appears once.
The median of a set of numbers is the middle one (if there are an odd number of them) or the mean average of the middle two (if there are an even number of them). The dataset {4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 10, 11} has 14 elements, so the median is the mean average of the 7th and 8th numbers. The 7th and 8th numbers are 7 and 7, thus the median is (7 + 7) / 2 = 7.
9+8+7 = 24, divided by 3 (the amount of numbers) = 8
To find the mean average, add all the values together and divide by the number of values: → mean = (4 + 8 + 9 + 8 + 6 + 5 + 7 + 5 + 8) ÷ 9 = 60 ÷ 9 = 6 and 2/3 ≈ 6.67
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