Return to the expanded table after Example B on page 713.

a. Fill in the missing probability in the "exactly" row.
b. Find the two missing probabilities in the "at most" row. For example, to find the probability that at most 2 birds survive, you could find the sum of the probabilities of 0, 1, and 2 birds surviving.
c. Find the three missing probabilities in the "at least" row.
d. Why don't the "at most" and "at least" values for each number of birds sum to 1?

Exactly At most At least 6 birds 5 birds 4 birds 3 birds 2 birds 1 bird 0 birds 289 157 045 005 207 050 005 038 165 1 962 038 949 9951