According to a survey by consulting firm Watson Wyatt approximately
According to a survey by consulting firm Watson Wyatt, approximately 19% of employers have eliminated perks or plan to do so in the next year (Kiplinger’s Personal Finance , February 2009). Suppose 30 employers are randomly selected.
a. What is the probability that exactly ten of the employers have eliminated or plan to eliminate perks?
b. What is the probability that at least ten employers, but no more than 20 employers, have eliminated or plan to eliminate perks?
c. What is the probability that at most eight employers have eliminated or plan to eliminate perks?

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