1. Which of the following statements best describes the effect on the Binomial Probability Model if
the number of trials is held constant and p (the probability of "success") increases?
a.
None of these statements are true
b.
The mean and standard deviation both decrease
c.
The mean and the standard deviation both increase
d.
The mean increases and the standard deviation decreases
e.
The mean decreases and the standard deviation increases
2. Harvey learned that his standardized zscore on a college placement exam, compared to
others who took the same test, was 1.25. Which of the following best describes how to interpret
Harvey’s score
a.
Harvey scored 1.25 points above the mean for all students taking the exam
b.
Only 12.5% of the students taking the exam did as well as Harvey
c.
Harvey's score is 1.25 standard deviation above the mean for all students taking the
exam
d.
Harvey's score is 1.25 times the mean for all students taking the exam
e.
Harvey scored 125 points
3. In April 2003, Science magazine reported on a new computerbased test for ovarian cancer,
“clinical proteomics,” that examines a blood sample for the presence of certain patterns of
proteins. Ovarian cancer, though dangerous, is very rare, afflicting only 1 in every 5000 women.
The test is highly sensitive, able to correctly detect the presence of ovarian cancer in 99.97% of
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Winter '08
 Ioudina
 Statistics, Binomial, Probability, Standard Deviation, Mean, Cauchy distribution, Harvey c

Click to edit the document details