View of closed shops in Delhi curfew

What is an outlier in the context of data analysis?

• A data point that is significantly different from other observations

• A data point that is exactly the same as the mean

• A data point that is always negative

• A data point that is always positive

Which of the following is a common method to identify outliers?

• Calculating the median

• Using a scatter plot

• Finding the mode

• Calculating the range

How can outliers affect the mean of a dataset?

• They have no effect on the mean

• They can skew the mean significantly

• They make the mean equal to the median

• They always increase the mean

What is one way to handle outliers in a dataset?

• Convert them to zero

• Remove them if they are errors

• Replace them with the mean

• Ignore them completely

Why is it important to identify outliers in data analysis?

• They make data analysis easier

• They can provide insights into data variability

• They always indicate errors in data collection

• They are always irrelevant to the analysis