Renal Disease The presence of bacteria in a urine sample (bacteriuria) sometimes associated with symptoms of kidney disease in women. Suppose a determination of bacteriuria has beer made over a large population of women at one point in time and 5% of those sampled are positive for bacteriuria *4.33 If a sample size of 5 is selected from this population. what is the probability that 1 or more women are positive for bacteriuria? *4.34 Suppose 100 women from this population are sam- pled. What is the probability that 3 or more of them are positive for bacteriuria?

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Please only answer 4.34
Renal Disease
The presence of bacteria in a urine sample (bacteriuria) is
sometimes associated with symptoms of kidney disease in
women. Suppose a determination of bacteriuria has been
made over a large population of women at one point in
time and 5% of those sampled are positive for bacteriuria.
*4.33 If a sample size of 5 is selected from this population,
what is the probability that 1 or more women are positive for
bacteriuria?
*4.34 Suppose 100 women from this population are sam-
pled. What is the probability that 3 or more of them are
positive for bacteriuria?
One interesting phenomenon of bacteriuria is that there is
a "turnover"; that is, if bacteriuria is measured on the same
woman at two different points in time, the results are not
necessarily the same. Assume that 20% of all women who
are bacteriuric at time 0 are again bacteriuric at time 1
(1 year later), whereas only 4.2% of women who were not
bacteriuric at time 0 are bacteriuric at time 1. Let X be the
random variable representing the number of bacteriuric
events over the two time periods for 1 woman and still as-
sume that the probability that a woman will be positive for
bacteriuria at any one exam is 5%.
Transcribed Image Text:Renal Disease The presence of bacteria in a urine sample (bacteriuria) is sometimes associated with symptoms of kidney disease in women. Suppose a determination of bacteriuria has been made over a large population of women at one point in time and 5% of those sampled are positive for bacteriuria. *4.33 If a sample size of 5 is selected from this population, what is the probability that 1 or more women are positive for bacteriuria? *4.34 Suppose 100 women from this population are sam- pled. What is the probability that 3 or more of them are positive for bacteriuria? One interesting phenomenon of bacteriuria is that there is a "turnover"; that is, if bacteriuria is measured on the same woman at two different points in time, the results are not necessarily the same. Assume that 20% of all women who are bacteriuric at time 0 are again bacteriuric at time 1 (1 year later), whereas only 4.2% of women who were not bacteriuric at time 0 are bacteriuric at time 1. Let X be the random variable representing the number of bacteriuric events over the two time periods for 1 woman and still as- sume that the probability that a woman will be positive for bacteriuria at any one exam is 5%.
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