How do you change password on tablet

Have you tryed restarting it ??

Open safari, go to hotmail.com and request a password reset link be sent to a different email address of your choosing. You'll probably have to answer the security question you set up when you created your hotmail account but that should be no problem. If you havent already got a second email address you can set one up when you log on to hotmail.com i hope this helps you. Regards, graham

Can you log in from another PC and change profile settings?

This is a very hard question to answer without me actually being there to see how it is configured at the moment. If you go into settings, email, calendars, etc, look to see if your password is configured correctly. iOS email is not hard to troubleshoot, but one must be there to see how it is configured now. Tell me this, is this a password issue? Do you need to change your email password? If you have an external email account that is added to the iPad, the password that you configured on your external account is the password you have to use on your iPad. This would be where you would have to go and change the password and then put the password into the iPad. I hope I helped some. Check this link for answers.
iPad Mail Contacts Calendars Apple Support

Did you have find my iPhone turned on? If you did you could have erased your iPad that would remove the pass code that is on there now

That's a very ambiguous question. Your passcode unlocks the iPad. You need an ssid and password to connect to wifi. Various apps require their own passwords. Only the apps require an internet connection.

No password, no access. You seem to need to 'Restore iPad' through iTunes (connect iPad to computer and open iTunes, you need internet connection to download system). All data will be lost through a restore, unless you back up (but without password you probably don't access the data anyway...).

You can only change you email password by logging into you email service provider account, go into their / your settings and update

kyros

If it is an apple tablet that has Icloud and find my ipad on you can log in to his icloud account and change the password at Icloud.com