A phone company surveys a sample of current
customers to determine if they use their phones most
Answer the questions to determine a conditional
often to text or use the Internet. They sort thè data by
probability.
payment plans, as shown below.
How many customers are on payment plan 8?
customers
Plan A: 27 text, 21 Internet
How many of the customers on B plan B text?
Plan B: 13 text, 10 Internet
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.