Mathematics, 23.09.2020 18:01 akerner
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 average daily number of emails the customer sent from the email address provided by the ISP. Servcalls is the number of time the customer called for service. Below is part of the classification tree they derived from the data collected in the study. Of the 223 sample customers, what is the ample proportion of those who churned?
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