SmokeyRN SmokeyRN

10-05-2018
Mathematics

contestada

Mrs, Graham conducted a study to determine how students use their time during study hall classes. She recorded what each student did during study hall for one month.
Which type of research design did Mrs,Graham use

A sample survey
B random sample
C experimental study
D observational study

Please need help with this

Respuesta :

EvilEvie EvilEvie

10-05-2018

D. Observational study

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