Question 3: Table C: Purchases of Mobile phones based on Brand Name and Age Age Group Brand Names

Samsung iPhone Motorola Below 35 Years 174 132 90 35 Years and Older 54 72 78

Using the data in Table C, answer the following questions (2X6 Marks) (a) Convert the given Contingency table to a joint probability table. (b) What is the probability that a randomly selected customer is younger than 35 years old? (c) What is the probability that a randomly selected customer purchases a Samsung Mobile? (d) What is the probability that a customer is younger than 35 years old and purchases a Samsung Mobile? (e) What is the probability that a customer is younger than 35 years old or purchases a Samsung Mobile? (f) What is the probability that a customer is below 35 years of age, given that the customer made a Samsung purchase?