MATHEMATICS · Multi-part · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions
Problem
A fair coin is tossed 7 times.
(i) Describe the complement of the event “at least one tail appears” in a single sentence.
(ii) Using the complement identified in (i), compute the probability that at least one tail appears in the 7 tosses.
(iii) Using your answer to (ii), determine the probability that exactly one tail appears in the 7 tosses.