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I said im going offline and not said that im leavingbyyy​

Answer»

Answer:

The information obtained from PARENTS, brothers and SISTER ,friends and relatives, neighbours and TEACHERS etc. in order to study the child falls under

a) interview method

b) Case study method

c)Questionnaire method

d) Observation method Scientists MUST follow the scientific method to ensure valid results in an experiment.(4X + 2y) + (3x + y + 2xy)x/6=5



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