INDEX 



2G1 



Interval estimate, of proportion, p, 123 

 of regression coefficient, 211 

 of true Y for the ith individual with 

 a given A', 214 



Kendall, M. G., 226, 228 

 Kenney, John F., 28, 48, 75, 112 



Law of compound probability, 55 

 Law of total probability, 53 

 Lerner, I. M., 139 

 Levy, H., 75 

 Lord, E., 256 



Marlatt, Abby, 229 



Massey, Frank J., 48, 112, 152, 191, 242 



Mean, arithmetic, 13, 155 



distribution of, 155, 157 



geometric, 20 



harmonic, 21 



of binomial distribution, 84 



of population, 13 



of sample, 155 



standard deviation of, 161 



variance of, 161 

 Mean deviation, 18 

 Median, 19 

 Median, for binomial distribution, 82 



for normal distribution, 92 

 Method of least squares, 205 

 Midpoint of class interval, 28 

 Midrange, 12 

 M-N blood groups, 60 

 Mode, 20 



of normal distribution, 92 

 Multiplication of probabilities, depend- 

 ent events, 55 



independent events, 54 

 Mutually exclusive events, 53 



n factorial, 64 



Neiswanger, W. A., 48 



Neyman, Jerzy, 5, 152, 191 



Normal approximation to a binomial 

 distribution, 86 



Normal distribution, cumulative (r.c.f.) 

 curve for, 96 

 curve, 91, 93 

 equation for, 90, 92 

 estimates of parameters, 159 



Normal distribution, for any mean and 

 standard deviation, 90 



mean of, 90 



median of, 90 



mode of, 90 



standard deviation of, 90 



standardized, 92, 93, 96 

 Normal-arithmetic paper, construction 

 of, 106 



use in study of normality, 106 



Observed confidence intervals on popu- 

 lation mean, 166 

 Ogive, 26 



Opinion polls, 113, 118 

 Ordered array, 19 



p, confidence interval for, 123 

 tests of hypotheses regarding, 131 



P factor in bloods, 60 



Parameter, 114, 122, 153, 159, 199, 217 



Pearson, E. S., 5, 126 



Pearson, Karl, 3, 5, 226 



Pillai, K. S. C, 183 



Pine, W. H., Ill 



Point estimate, p, 122, 123 

 x, 160 



Political arithmetic, 2 



Probability, addition formula, 53 

 conditional, 55 

 determination of, 51 

 multiplication formula, 55 

 of error of the first kind, 116 

 of error of the second kind, 116 



Questionnaire, mailed, 119 



r, computation of, 217, 224 



observed distribution with 10 D/F, 

 218, 219 

 Random sampling, 43, 156 

 Range, 149, 182 



Rank correlation coefficient, 227 

 Ranked data, 226 



Rectification of a logarithmic curve, 103 

 Region of rejection, 131 

 Regression coefficient, computation of, 

 205 



interpretation of, 211 



test of significance for, 211 





