Based on a poll, 50% of adults believe in reincarnation. Assume that 8 adults are randomly selected, and find the indicated probability. Complete parts (a) through (d) below.
a. The probability that exactly 7 of the 8 adults believe in reincarnation.
b. What is the probability that all of the selected adults believe in reincarnation?
c. What is the probability that at least 7 of the selected adults believe in reincarnation?
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