4. Based on data from the Insurance Research Council, about 14% of US drivers are uninsured....

4. Based on data from the Insurance Research Council, about 14% of US drivers are uninsured. Let’s assume the 14% is true and we randomly select 250 US drivers. Round all probabilities to 3 significant figures.

Find the mean and standard deviation for number of uninsured drivers among the 250 we select.
Use your results from part (a), and the range rule of thumb to identify the values that are significantly low and high.
Determine the probability that at most 20 drivers of the 250 selected are uninsured.
Given that 20 drivers out of the 250 selected were uninsured,what can we conclude?

Expert Solution

orchestra answered 2 years ago

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