12 Tables for Statisticians and Biometricians 



TABLE V. Probable Errors of Means and Standard Deviations. 



n 



^1 



^2 



1 



•67449 



•47694 



2 



•47(394 



•33724 



3 



•38942 



•27536 



4 



•33724 



•23847 



5 



•30164 



•21329 



6 



•27536 



•19471 



7 



•25493 



•18026 



S 



•23847 



•16862 



9 



•22483 



•15898 



10 



•21329 



•15082 



11 



•20337 



•14380 



1:2 



•1-9471 



•13768 



13 



•18707 



•13228 



u 



•18026 



•12747 



15 



•17415 



•12314 



16 



•16862 



•11923 



17 



•16359 



•11567 



18 



•15898 



•11241 



19 



•15474 



•10912 



20 



•15082 



•10665 



21 



•14719 



•10408 



22 



•14380 



•10168 



23 



•14064 



•09945 



H 



•13768 



•09735 



25 



•13490 



•09539 



26 



•13228 



•09353 



27 



•12981 



•09179 



28 



•12747 



•09013 



29 



•12525 



•08856 



30 



•12314 



•08708 



31 



•12114 



•08566 



32 



•11923 



•08431 



33 



•11741 



■•08302 



3Jt 



•11567 



•08179 



35 



•11401 



•08062 



36 



•11241 



•07949 



37 



•11088 



•07841 



38 



•10942 



•07737 



39 



•10800 



•07637 



40 



•10665 



■07541 



U 



•10534 



•07448 



Jt2 



•10408 



■07359 



43 



•10286 



■07273 



U 



•10168 



•07190 



45 



•10055 



■07110 



46 



•09945 



•07032 



47 



•09838 



•06957 



48 



•09735 



■06884 



49 



•09636 



•0G813 



50 



•09539 



•06745 



n 

 51 



Xi 



X2 



•09445 



' •06678 



52 



•09353 



•06614 



53 



■09265 



■06551 



54 



■09179 



•06490 



b-j 



■09095 



•0Gi3I 



56 



■09013 



•06373 



57 



•08934 



•06317 



5S 



•08856 



•06262 



59 



•08781 



•06209 



60 



•08708 



■06157 



61 



•08636 



■06107 



62 



•08566 



■06057 



63 



•08198 



•06009 



64 



•08431 



•05962 



65 



•08366 



•05916 



66 



•08302 



•05871 



67 



•08240 



•05827 



68 



•08179 



•05784 



69 



•08120 ■ 



■05742 



70 



•08002 



■05700 



71 



■08005 



•05660 



72 



■07949 



•05621 



1 o 



■07894 



•05582 



74 



■07841 



•05544 



75 



■07788 



•05507 



76 



■07737 



•05471 



7 7 



•07687 



■05435 



78 



•07637 



■05400 



79 



•07589 



•05366 



SO 



•07541 



•05332 



81- 



•07494 



•05299 



82 



•07448 



•05267 



83 



■07403 



■05235 



84 



■0735!) 



■05204 



85 



■07316 



•05173 



86 



•07273y 

 •07231 ^ 



•05143 ' 



87 



•05113 



SS 



•07190 



•05084 



89 



•07150 



•05056 



90 



■07110 



•05027 



91 



•07071 



■05000 



92 



•07032 



•04972 



!'•/ 



•06994 



•04946 



9'i 



•1)6957 



•04919 



95 



•06920 



•04893 



96 



•06884 



•04868 



97 



•06848 



•04843 



9S 



•06813 



•04818 



9'J 



•06779 



•04793 



100 



•06745 



•04769 



n 



^1 



Xo 



101 



•06711 



■04746 



10.' 



•06678 



■04722 



lUJ 



•X)6646 



■04699 



104 



•06614 



■04677 



W5 



•06582 



■04654 



106 



•06551 



■04632 



107 



•06521 



■04611 



lOS 



•06490 



•04589 



109 



■06460 



■04568 



110 



•06431 



•04547 



111 



■06402 



•04527 



112 



•06373 



•04507 



113 



•06345 



•04487 



114 



•06317 



•04467 



115 



•06290 



•04447 



116 



•06262 



■04428 



117 



■06:^36 



■04409 



lis 



•062U9 



•04391 



119 



■06183 



•04372 



120 



■06157 



•04354 



1:21 



■06132 



•04336 



132 



•06107 



•04318 



123 



■06082 



•04300 



m 



■06057 



•04283 



1 25 



•06033 



•04266 



1:26 



•06009 



•04249 



127 



•05985 



•04232 



1:28 



•05962 



•04210 



1.29 



•05939 



•04199 



130 



■05916 



•04183 



131 



•05893 



•04167 



132 



■05871 



•04151 



133 



•05849 



■04136 



134 



■05827 



•04120 



135 



■05805 



■04105 



136 



■05784 



•04090 



137 



■05763 



■04075 



138 



■05742 



■04060 



139 



•05721 



•04045 



140 



•05700 



•04031 



141 



■05680 



■04017 



142 



•05660 



•040112 



143 



•05640 



■0398,S 



144 



■05621 



•0397 1 



145 



•05601 



■03961 



146 



•05582^ 



■03047 



w 



•05563 



■03934 



148 



•05544 



■03920 



149 



•05526 



•03907 



150 



■05507 



■03894 



