Please help me,, Can we hide some columns like Failed/delivered from the mailing statistics. Please refer the below screenshot as shown I want to hide the Delivered and Failed status from the statistics
There is no configuration setting for that, but it's possible to do in a UI extension. You would basically write a Data Extender which modifies the output for the response to the list header XML - removing the columns you don't want.
Be sure this is what all of your users want, though. Most people are quite interested in how many e-mails were delivered but not read, or failed to be delivered in the first place (although it seems like you haven't set that up, since they're all 0).