A company surveyed its employees about their preferred method of communication for company updates: email or internal messaging app. All employees participated. Of the employees, 70% preferred email. Among employees who preferred email, 80% were in Department X. Among employees who preferred the messaging app, 40% were in Department X. Based on this information, which of the following is an accurate conclusion?
More employees preferred the messaging app than preferred email.
Employees who preferred email were more likely to be in Department X than were employees who preferred the messaging app.
Department X has more employees than any other department.
The company should primarily use email for updates to reach the most employees.
