Data Processing



Q) What are the three measures of central tendency?

Answer: Mean, median, mode


Q) How is the mean calculated?

Answer: Sum of all values divided by the number of observations


Q) Is the mean affected by outliers?

Answer: Yes, sensitive to outliers


Q) How is the median calculated?

Answer: Middle value when data is arranged in ascending/descending order


Q) Is the median affected by outliers?

Answer: No, not affected by outliers


Q) How is the mode calculated?

Answer: Most frequent value


Q) What is the advantage of the mode?

Answer: Easy to understand and not affected by outliers


Q) When is the mean most useful?

Answer: For normally distributed data


Q) When is the median most useful?

Answer: For skewed data or when there are outliers


Q) What is the disadvantage of the mode?

Answer: Not as informative as other measures


Q) What is the best measure of central tendency to use?

Answer: It depends on the specific data and situation