Answer to Question #143921 in Statistics and Probability for Ella Ssebulime

Question

While buying a bicycle, Kylie can choose between three materials
(wood, steel, and carbon fiber), between a digital and an analog
gauge, and between 15 different tire brands.
How many combinations are there in total?

Answer 1

We use the multiplication principle (https://www3.nd.edu/~apilking/Math10120/Lectures/Solutions/Topic03.pdf) and receive: $3*2*15=90$ combinations.