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Statistika
File size:
141 KB
ID number:

452327

 
Author:
Evaluation:
Published: 14.12.2015.
Language: Latvian
Level: Elementary school
Literature: 2 units
References: Not used
Extract

Kas ir mediāna?
Mediāna ir skaitlis, kas atrodas augošā vai dilstošā secībā sakārtotas virknes vidū, ja virknē ir nepāra skaits datu, vai divu vidējo skaitļu summas puse, ja virknē ir pāra skaitlis datu.

Piemērs:
8. Klases skolēni mūzikas skolas klavieru eksāmenā ieguva šādus vērtējumus:
6,8,5,5,9,6,8,5,7,8,7,4,5,9.
Nosaki šo datu mediānu.

1)Sakārto datus augošā secībā.
4,5,5,5,5,6,6,7,7,8,8,8,9,9.
2) Nosaka skaitļus, kas atrodas virknes vidū.
4,5,5,5,5,6,6,7,7,8,8,8,9,9.
3)Saskaita šos skaitļus un summu izdala ar 2.
(6+7)/2=6,5
Doto datu mediāna ir 6,5

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