StatCrunch Applets Edit Data Stat Graph Help Row Country Life Expectancy Fertili

Question

StatCrunch Applets Edit Data Stat Graph Help Row Country Life Expectancy Fertility Rates var4 vars var6 var7 var8 89.4 85.3 85.2 84.6 83.3 83.1 1.53 1.41 0.83 0.95 Japan 3 Singapore Macau 5 San Marino Iceland 7 Hong Kong Andorra 9 Guernsey 10 Switzerland 11 South Korea Israel 2 1.19 82.9 82.6 82.6 82.5 82.5 82.3 82.3 82.3 82.1 81.9 81.9 81.9 1.56 1.56 1.26 2.64 1.62 1.77 1.44 1.88 2.07 1.85 1.69 1.66 13 Luxembourg 14 Australia Sweden France orwa 19 Liechtenstei 81.9 81.8 81.6 81.5 81.4 81.4 81.3 81.3 81.3 Canada 1.47 1.74 1.78 1.93 2.02 1.85 .92 Austria 25 Netherlands 26 Bermuda 27 New Zealan 28Cayman Isla 29 Isle of Man

Explanation / Answer

Answer to the question)

In the question#5 it is mentioned that if any of the variables doesnot have value , we exclude it from the analysis. Hence it is better to European Union & South Sudan.

Since the values of these two are not mentioned , we can niether consider them as Zero , nor include them in the calculation, this will lead to biased value of correlation coefficient and skewed scatter plot

Thus it is suggested to exclude the data we are not sure of or which is incomplete. This step helps us get the correct value of corrleation and regression parameters

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