## Background
As part of the new email confirmation experiment, we need a baseline for the email confirmation rate for new accounts.
##Task
For registered accounts created in the last 90 days, calculate:
- Confirmation rate among accounts that provided an email address
-- of all new registered accounts that added an email address, what percentage confirmed that email within 24 hours of account creation?
-- calculation: number of new registered accounts that confirmed an email within 24 hours ÷ number of new registered accounts that provided an email address
- Confirmation rate among all registered accounts
-- of all new registered accounts, including accounts that did not add an email address, what percentage confirmed an email within 24 hours of account creation?
-- calculation: number of new registered accounts that confirmed an email within 24 hours ÷ total number of new registered accounts
Provide both calculations for:
-- enwiki only
-- all wikis combined
Exclude temporary accounts from all calculations.
For each calculation, include:
-- confirmation rate
-- number of accounts that confirmed an email within 24 hours
-- total number of accounts used in the calculation
-- exact 90-day date range used