geography skills

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spearmans rank formula
r=1-
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step 1
: Rank each set of data (width rank and depth rank). Rank 1 will be given to the largest number in column 2. Continue ranking till all widths have been ranked. Once all the widths have been ranked then do exactly the same for depth.
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step 2
find d (the difference in rank between the width and depth) calculate d by subtracting the depth rank column ) from the width rank column
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step 3
calculate d² by squaring the D column, ². Once all the d² values have been calculated add them together to calculate d².
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step 4
o calculate n ³ - n. n is the number of samples, . Once n³ has been calculated, subtract the value of n from it.
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step 5
All that is left to do now is to insert the values into the equation to calculate r. The result at the end should always be between the value of +1 and -1.
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Other cards in this set

Card 2

Front

: Rank each set of data (width rank and depth rank). Rank 1 will be given to the largest number in column 2. Continue ranking till all widths have been ranked. Once all the widths have been ranked then do exactly the same for depth.

step 1

Card 3

Front

find d (the difference in rank between the width and depth) calculate d by subtracting the depth rank column ) from the width rank column

Card 4

Front

calculate d² by squaring the D column, ². Once all the d² values have been calculated add them together to calculate d².

Card 5

Front

o calculate n ³ - n. n is the number of samples, . Once n³ has been calculated, subtract the value of n from it.