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ID number:529989
Evaluation:
Published: 07.12.2010.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Pētījuma apraksts: Tika aptaujāti 20 Elejas vidusskolas 11. klases skolēni, no kuriem tika
ievākta informācija par viņu augumu (cm) un masu (kg). Tika iegūti sekojoši dati (iekavās,
attiecīgi, pirmais skaitlis norāda augumu (cm), bet otrais masu (kg)):
(162; 55), (174; 55), (166; 55), (173; 67), (169; 55), (167; 65), (163; 55), (168; 63), (167; 59),
(170; 57), (164; 55), (158; 56), (192; 88), (171; 56), (180; 80), (172; 70); (165; 52), (163; 55),
(170; 55), (155; 55).

Apvienojot gan skolēnu auguma, gan masas datus vienā grafikā, var secināt to, ka abi šie lielumi ir cieši saistīti un korelācija ir pozitīva; abu datu kopu savstarpējo saistību pierāda arī
programmas Excel aprēķinātais korelācijas koeficiens – 0,9193, kas izsaka to, ka saistība starp šīm abām datu kopām ir ļoti cieša.…

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