A particular blog receives a visitor every 24 minutes.
a. Use the binomial or Poisson distribution to estimate the expected number of hits per day.
b. Compare the probability givens by a binomial and a Poisson distribution that the
blog receives 2 visitors in a 17 minute period.
A. For 1 hit per 24 minutes, p = 1/24 = .042; for 24 hours, n = 60 * 24 = 1440
Expected mean: np = 1440 * .042 = 60
B. Binomial: P(X) = (n choose x) p^x (1-p)^ n - x = (17 choose 2) (.042)^2 (.958)^15 =
136 * .002 * .525 = .143
Poisson: ? = np = 17 * .042 =.714 P(X) = e^-? * ?^x / x! = e ^ - .714 * .714 ^
2 / 2! = .125
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The Convention on Biological Diversity contains all of the following components except
a. protection of biological diversity. b. sustainable use of biological resources. c. encouraging basic scientific research by easing laws. d. equitable sharing of benefits from biological resources.
Campaign organizations are unlike other organizations because:
a. They are focused on the goals of one individual. b. They are issue-driven. c. They focus on the needs of vulnerable populations. d. They are time-limited and have a single purpose.
Emergency powers
A. are directed by the Indian president. B. can be used by the prime minister. C. are used by the Cabinet ministers. D. are unconstitutional.
The military first intervened to overthrow a civilian government in Nigeria about ____ after the country's independence in 1960
a. six months b. one year c. six years d. eighteen months e. four years