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Q. The author of “ The Grammar of Science” is

Q. There are mainly…………. sources of data

Q. Selecting sample units in just a “hit and miss” fashion is called

Q. The process of examining the collected raw data to detect errors and omissions and to correct these when possible

Q. Questions in which only two alternatives are possible is called

Q. The question which by its content structure or wordings leads the respondent in the direction of a certain answer is called

Q. The chief merit of survey is

Q. ………… is the raw materials for Analysis

Q. The first step in a survey is ……………. of a problem

Q. Interview with a detailed standardised schedule is called