Correct: volunteer, random, representative, population, stratified, systematic, biased, opportunity, target, participants, Incorrect: independent, matched, reliability, observation, experiment, hypothesis, measures, statistics, interview, ethics,

લીડરબોર્ડ

દૃશ્યમાન શૈલી

વિકલ્પો

ટેમ્પલેટ બદલો

આપોઆપ સંગ્રહ થયેલ છે: ?