An internet service provider (ISP) has randomly selected a sample of 223 observations concerning values of the response variable Churn and several predictor variables based on customer activity during the most recently billed month. Here Churn equals Yes if a customer churned-left the internet service provider for another ISP-and equals No otherwise. The predictor variable MinutesOn is the average daily minutes the customer spent online. EmailSent is the average daily number of emails the customer sent from the email address provided by the ISP. ServCalls is the number of times the customer called for service. Below is part of the classification tree they derived from the data collected in the study. 
Of the sampled customers who spent an average of less than 511 minutes online per day and placed at least 3 service calls, how many did not churn?
Definitions:
Collective Agreement
A written contract negotiated between an employer and a union representing the employees, outlining the terms and conditions of employment.
Union Dues
Fees paid by members to a labor union to support its operations and activities.
Bargaining Agent
A body certified to act on behalf of a group of employees or employers.
Bargaining Unit
A group of employees with a clear and identifiable community of interest who are represented by a single labor union in collective bargaining.
Q7: The quality control manager of a tire
Q19: If the sampled population is exactly normally
Q49: If we have a sample size of
Q61: When looking at the shape of the
Q65: A manufacturing company measures the weight of
Q77: If a population distribution is skewed to
Q89: At a college, 70 percent of the
Q98: The median is the value below which
Q120: Every current applicant for a position in
Q139: When the probability of one event is