Tue or false

Dear Student,
12) True. Karl Pearson's method of correlation applies to those series where deviations are calculated on the basis of assumed mean. However, There are total three methods for calculation of correlation through Karl Pearson's method- From Actual mean, From assumed mean and from step deviation method.
13) False. There is no correlation between age of applicants to life insurance because the amount of life insurance is paid just once. However, the correlation between age of applicants to the premium at insurance is positive correlation because the amount that you would pay for insurance increases with age.
14) True. If the plotted points on a scatter diagram lie from upper left to lower right then the correlation is negative.
Regards

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