Angus goes to one of two coffee shops in his home town. He goes to Tarbucks 64
Question:
Angus goes to one of two coffee shops in his home town. He goes to Tarbucks 64 % of the time and otherwise goes to Costly Coffee. Either way, he buys a latte 74 % of the time, regardless of which place he chose.
Part a)
You are told that Angus went into town for a coffee today. What is the probability (to 3 d.p.) that he had a latte at Tarbucks?
Part b)
Define two events as follows:
L = Angus had a latte
T = Angus went to Tarbucks
Are the two events independent?
A. Yes
B. No
Part c)
Given that Angus had a latte in town, what is the probability (to 3 d.p.) that he drank at Costly Coffee?
Part d)
What is the probability (to 3 d.p.) that Angus went to Tarbucks or had a latte or both?
Statistics Principles and Methods
ISBN: 978-0470904114
7th edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya