Combinations

Question

Suppose you toss a coin 7 times. Each time you record if it lands on H or T. You keep track of all 7 tosses as an ordered list (toss1, toss2, toss3, toss4, toss5, toss6, toss7). How many outcomes are in the sample space?
A. 16
B. 32
C. 64
D. 128

Answer 1

2⁷ = 128 because each of seven outcomes has two possible (H or T) possible outcomes.