THEORY OF STATISTICS.
order and aggregate of classes, different values of p and n, 294,
10-11; ultimate classes, 12; 295; experimental illustrations
positive classes, 13-14; consist- of, 258, 259 (qu. 1 and qu. 2), 274,
ence of class-frequencies, 17-24 371 ; graphic method of forming
(see Consistence) ; association of, a representation of series, 295-25-59,
377-381 (see Association) ; 297 ; mechanical method of formsampling
of, 254-334 (see Sam- ing a representation of series, 297—
pling of attributes). 299; refs, 313; direct deter-Averages,
generally, 106-132 ; def., mination of mean and standard-107
; desirable properties of, 107— deviation, 299-300 ; deduction of
108; forms of, 108; average in normal curve from, 301-302;
sense of arithmetic mean, 109; refs., 314.
refs., 129-130. See Mean, Median, Bispham, J. W., refs., errors of
Mode. sampling in partial correlations,
Axes, principal, in correlation, 321— 395.
322. Blakeman, J., refs., tests for linearity
of regression, 209, 354 ; probable
error of contingency co-BACHELIER,
L., refs., Calcul des efficient, 354.
probabilités, 396 ; Le jeu, la chance. Boole, G., refs., Laws of Thought, 23.
et le hasard, 396. Booth, Charles, on pauperism, 193,
Barlow, P., tables of squares, etc., 195.
67. Refs., 357. Borel, E., refs., Théorie des proba-Barometer
heights, table, 96; dia- bilités, 360.
gram, 97 ; means, medians, and Bortkewitsch, L. von, law of small
modes, 122. chances, 265-266, 370; time-Bateman,
H., refs., law of small distributions, 389; refs., law of
chances, 273. small chances, 273, 393.
Bateson, W., data cited from, 37, Bowley, A. L., refs., effect of errors
380-381. on an average, 356 ; on sampling,
Beaven, E. S., refs., yield trials, 396. 354 ; Measurement of Groups and
Beetles (Chrysomelide), sizes of Series, 354 ; Elements of Statistics,
genera, 363-364. 360, 396 ; Elementary Manual of
Beeton, Miss M., data cited from, 78. Statistics, 360 ; cost of living, 390 ;
Bennett, T. L., refs., cost of living, index numbers, 391; Prices and,
390. Wages, 1914-20, 391.
Bernoulli, J., vefs., Ars Conjectandi, — and L. R. Connor, statistical
360. grouping and formule, ref., 394.
Berry, R. A., refs., variation in Bravais, A., refs., correlation, 188,
mangels, 396; errors in feeding | 332.
experiments, 396. British Association, data cited from,
Bertillon, J., ref., Cours élémentaire stature, 88; weight, 95, see
de statistique, 6, 359. Stature ; Weight; Reports on
Bertrand, J. L. F., refs., Calcul des index-numbers ; refs., 130-131.
probabilités, 360. Address by A. L. Bowley on sam-Betz,
W., ref., Ueber Korrelation, pling, 354.
360. Brown, J. W., refs., index-correla-Bias
in sampling, 261-262, 279-281, tions, 266, 252.
336-337, 343, 353. Brown, W., refs., effect of experi-—
in scale-reading, 362-363. mental errors on the correlation-Bielfeld,
Baron, J. F. von, use of coefficient, 226 ; Zhe Hssentials of
word ‘ statistics,” 1. Mental Measurement, 360, 396.
Binomial series, 291-300; genesis ‘Brownlee, J., refs., frequency curves
of, in sampling of attributes, (epidemiology), 394.
291-293 ; . calculated series for Bruns, H., refs., Wahrscheinlich-408
