41.Which of the following is not categorized as a probability sampling method?

42.A distribution of scores was negatively skewed. It can be stated that

43.When a researcher includes in his sample those individuals who are willing and are readily available, sampling technique is called

44.Who said that �Material and spiritual knowledge is already present in man covered by a curtain of ignorance�?

45.�Reverse the usual practice and you will almost always do right� was the dictum of