re Layla tosses three coins.
A. Complete the tree diagram to show the sample space
for how the coins can
land. H represent heads
and T
represent tails
Coin 1
H
Coin 2
H
H
Coin 3
H
H
T
H
H
B. What is the probability that exactly two coins land heads up? Write the
probability as a fraction,
decimal, and percent.
C. What is the probability that exactly two coins land tails up? Compare
this probability to
the probability that exactly two coins land heads up.
D. What is the probability that exactly three coins land tails up? Write the
probability as a fraction, decimal, and percent.
E. Name an event with the same probability as that of three tails? Explain.
F. Compare the theoretical probability of getting at least one head and
the theoretical probability of getting at least two tails.