Try it
A phone company surveys a sample of current
customers to determine if they use their phones most
often to text or use the Internet. They sort the data by
payment plans, as shown below.
SAS
Plan A 27 text, 21 Internet
Plan B: 13 text, 10 Internet
Answer the questions to determine a conditional
probability
How many customers are on payment plan B?
customers
How many of the customers on plan B text?
customers
What is the probability that a randomly selected
customer who is on plan B uses the phone most often
to text? Give the answer in fraction form.