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Stat200 Quiz 2

10.  (10) Which activity could probabilities be computed using a Binomial Distribution?

a. Flipping a coin a 100 times

b. Throwing a die one hundred times

c. The probability of getting a heart while playing card games

d. Grades earned by 100 students on a statistics final exam

11.  (11) Many researchers have argued that the TB skin test is not accurate. Imagine that the TB skin test is only 70% accurate. Sarah is thinking about having the test. Before she has the test she wonders the probability that she has TB. The probability of Sarah having TB is …

a. 70%

b. 35%

c. 30%

d. More information needed to calculate


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