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The presence of bacteria in a urine sample (bacteruria) is sometimes associated with symptoms of kidney...

The presence of bacteria in a urine sample (bacteruria) is sometimes associated with symptoms of kidney disease in women. Suppose a determination of bacteriuria has been made over large population of women at one point in time and 5% of those sampled are positive for bacteriuria.

a) If a sample of size 6 is selected from this population what is the probability P1 that 2 or more women are positive for bacteriuria?

P1=

b) Suppose 100 women from this population are sampled. What is the probability P2 that 9 or more women are positive for bacteriuria?

P2=

Math   Statistics-And-Probability   
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