{Mule-.3. b. Suppose you are doing research on \"Corona Virus\" What important aspects of research would you consider? State all stepwise, from beginning including all design and sampling techniques that would be used. Q.No.3. c What Is a biased sample? Explain the different ways In which bias may arise In sample survey and how can It be eliminated? An swer: Q.No.3. d Differentiate between Stratied and cluster sampling with real life example. How will you allocate sample both techniques? Answer: Q.No.3. e. Explain sampling and non-sampling errors. What methods would you suggest to control each type of error