{"id":546,"date":"2020-03-30T12:38:28","date_gmt":"2020-03-30T10:38:28","guid":{"rendered":"http:\/\/estatistika.ku.sk\/?page_id=546"},"modified":"2021-12-31T10:23:00","modified_gmt":"2021-12-31T09:23:00","slug":"standardna-odchylka","status":"publish","type":"page","link":"https:\/\/estatistika.ku.sk\/index.php\/standardna-odchylka\/","title":{"rendered":"\u0160tandardn\u00e1 odch\u00fdlka"},"content":{"rendered":"<p style=\"text-align: justify;\">Je to typick\u00e1, priemern\u00e1 miera odch\u00fdlky v rade \u010d\u00edsel, je to typick\u00e1 miera, o ktor\u00fa sa ka\u017ed\u00e9 \u010d\u00edslo od priemeru odli\u0161uje.<\/p>\n<p style=\"text-align: justify;\">Pr\u00edklad pre lep\u0161ie pochopenie (Walker, 2013):<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; text-align: center;\">V\u0160\u00a0 A<\/td>\n<td style=\"width: 50%; text-align: center;\">V\u0160\u00a0 B<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; text-align: center;\">18<\/td>\n<td style=\"width: 50%; text-align: center;\">0<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; text-align: center;\">19<\/td>\n<td style=\"width: 50%; text-align: center;\">10<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; text-align: center;\">20<\/td>\n<td style=\"width: 50%; text-align: center;\">20<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; text-align: center;\">21<\/td>\n<td style=\"width: 50%; text-align: center;\">30<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; text-align: center;\">22<\/td>\n<td style=\"width: 50%; text-align: center;\">40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><strong>Ak\u00fd je priemern\u00fd vek na V\u0160 A a V\u0160 B?<\/strong><\/p>\n<p style=\"text-align: justify;\">Pod\u013ea priemeru sa zdaj\u00fa by\u0165 skupiny z h\u013eadiska veku rovnak\u00e9&#8230;<\/p>\n<p style=\"text-align: justify;\">Av\u0161ak, okrem priemeru, je nutn\u00e9 pozna\u0165 i hodnotu \u0161tandardnej odch\u00fdlky, ktor\u00e1 n\u00e1m spolu s priemerom poskytne ve\u013ek\u00e9 mno\u017estvo inform\u00e1ci\u00ed o v\u00fdskumnom s\u00fabore.<\/p>\n<p style=\"text-align: justify;\">Na V\u0160 A je hodnota \u0161tandardnej odch\u00fdlky <strong>1,58<\/strong> roka, na V\u0160 B je hodnota \u0161tandardnej odch\u00fdlky <strong>15,81<\/strong> roka \u2013 tzn., \u017ee rozlo\u017eenie v\u00fdskumn\u00e9ho s\u00faboru na V\u0160 B je omnoho heterog\u00e9nnej\u0161ie v porovnan\u00ed s V\u0160 A.<\/p>\n<p style=\"text-align: justify;\">Interpret\u00e1cia \u0161tandardnej odch\u00fdlky: <strong>Na V\u0160 A je \u201etypick\u00fd\u201c \u0161tudent o 1,58 roka odli\u0161n\u00fd od priemeru (20 rokov), na V\u0160 B je \u201etypick\u00fd\u201c \u0161tudent o 15,81 roka odli\u0161n\u00fd od priemeru (20 rokov).<\/strong><\/p>\n<p style=\"text-align: justify;\">M\u00f4\u017ee sa to zap\u00edsa\u0165: vek V\u0160 A: 20 rokov (\u00b1 1,58 rokov), V\u0160 B: 20 rokov (\u00b1 15,81 rokov).<\/p>\n<blockquote>\n<p style=\"text-align: justify;\">Ak je smerodajn\u00e1 odch\u00fdlka <i>ve\u013ek\u00e1<\/i> \u2013 \u010d\u00edsla sa navz\u00e1jom zna\u010dne l\u00ed\u0161ia.<\/p>\n<p style=\"text-align: justify;\">Ak je smerodajn\u00e1 odch\u00fdlka <i>mal\u00e1<\/i>\u2013 \u010d\u00edsla s\u00fa si navz\u00e1jom podobn\u00e9.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Je to typick\u00e1, priemern\u00e1 miera odch\u00fdlky v rade \u010d\u00edsel, je to typick\u00e1 miera, o ktor\u00fa sa ka\u017ed\u00e9 \u010d\u00edslo od priemeru odli\u0161uje. Pr\u00edklad pre lep\u0161ie pochopenie (Walker, 2013): V\u0160\u00a0 A V\u0160\u00a0 B 18 0 19 10 20 20 21 30 22 40 Ak\u00fd je priemern\u00fd vek na V\u0160 A a V\u0160 B? Pod\u013ea priemeru sa zdaj\u00fa [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"footnotes":""},"class_list":["post-546","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/comments?post=546"}],"version-history":[{"count":4,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/546\/revisions"}],"predecessor-version":[{"id":1680,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/546\/revisions\/1680"}],"wp:attachment":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/media?parent=546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}