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pyrone

matematicka statistika

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nazdar pani,

potrebujem pre znamu poriesit jedno zadanie do skoly na predmet Statistika. dostala zadanie a je z toho uplne tupa takze som sa rozhodol ze jej s tym pomozem.

uz je skoro cele hotove len mam problem s bodmi 4,5 a 7.

pokial sa niekto tomu rozumie tak je to celkom brnkacka ale ja som pred rokmi dostal zapocet zo statistiky len za ucast :mad:

keby mi niekto vedel s tym pomoct tak mu poslem databazu udajov aby to boli udaje k veci.

zadanie:

1. vytvorite 2 frekvencne tabulky (tabulky rozdelenia pocetnosti) z Vami vybranych otazok

2. vytvorite 2 grafy z Vami vybranych otazok

3. z 2 Vami vybranych otazok vypocitate aritmeticky priemer, modus a median

4. vytvorite 1 index - popisete, z ktorych otazok sa sklada a vyratate z neho priemer

5. vytvorite 2 kontingencne tabulky, ktore budu obsahovat porovnania 2 otazok

6. vytvorite 3 korelacne hypotezy a overite ich pravdivost

7. vytvorite 1 kontingencnu hypotezu a overite ju cez chi-kvadrat

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