Question

You are conducting an experiment to test the density of a new recipe for chocolate cake. You will test the recipe with 3 different baking temperatures (350, 400 and 450) and 3 different baking times (45 minutes, 55 minutes and 60 minutes).
How many treatments are there?

Answer 1

Answer: There are 9 possible treatments .

Step-by-step explanation:

There are 3 different baking temperatures (350, 400 and 450) and 3 different baking times (45 minutes, 55 minutes and 60 minutes).

By Fundamental counting principle,

Number of treatments  = (Number of different baking temperatures) x (Number of different baking  times)

= 3 x 3 = 9

Hence, there are 9 possible treatments .