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There are 25 students in Mrs. Y's eighth-grade class. On a cold winter day in February, many of the students had runny noses or sore throats. Round your answers to three decimal places.
a. Find the probability that a randomly selected student has a runny nose
b. Find the probability that a randomly selected student has a sore throat or a runny nose
c. Find the probability that a randomly selected student has neither a sore throat nor a runny nose
d. Find the probability that two different randomly selected students have a runny nose
e. Find the probability that a randomly selected student a sore throat given that he has a runny nose.
a 90 confidence interval for a proportion is 0.265 0.385. what is the probability that the population proportion is
What is the population under consideration
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a company conducts random drug tests each month employee selections are independent of any previous months selections.
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A researcher is interested in the relationship between caffeine consumption and activity level for elementary school children. A sample of 20 children is obtained and the children are separated into two roughly equivalent groups.
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