An STD clinic sees 10 people an hour. The actual probability of someone having an STD is 30%. What is the probability of getting 4 people with an STD in the next hour at the clinic?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
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  • An STD clinic sees 10 people an hour. The actual probability of someone having an STD is 30%. What is the probability of getting 4 people with an STD in the next hour at the clinic?
  • On average, the fasting blood glucose for pregnant women is 80 with a standard deviation of 10. What is the probability that a pregnant woman has a fasting blood glucose level of less than 77?
  • There are 20 crew members at a given university. What is the probability that their mean BMI will be 2 units below the mean BMI for the population? Assume the standard deviation is 5 and the outcome is normally distributed in the population.
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