there are 20 true false questions of a test. if all the questions are answered, in how many different ways can the test be completed (hint:consider each question as one step)
There are two choices for the first question: T or F
There are two choices for the second question: T or F
Etc.
To find the total number of ways the test can be answered, multiply all the individual choices together:
---> 2 x 2 x 2x ... x 2 (twenty times)
