BIOSTATS TESTBANK 100+ QUESTIONS
AND VERIFIED ANSWERS 2024
1. Blood pressure data are commonly described
using a. pie charts
b. box and whisker
c. bar graph
d. monograms: b. box and whisker
2. One of the most important features of the Normal distribution is that
it is entirely defined by
a. Mean and standard deviation
b. Mode and standard deviation
c. Mean and mode
d. Median and standard deviation
e. Mean and median: a. Mean and standard deviation
3. Hemoglobin concentrations data are commonly described
using a. histograms
b. bar graph
c. priogram
d. pie charts: a. histograms
4. Assuming a normal Gaussian distribution for the results of a
particular test and a mean value of 35 an d SD of 4, what percentage of
people will be in the interval between 31 and 43? a. 50%
b. 95%
,c. 82%
d. 68%
e. 34%: c. 82%
5. What is the probability of no success in five observations if the
probability of success is 0.9?
a. 0.59049
b. 0.32805
c. 0.00045
d. 0.00001
e. 0.00810: d. 0.00001
6. The birth weights in a hospital are to be presented in a graph. This is
best done by a:
a. Bar diagram
b. Pie chart
c. Frequency chart
d. Pictogram
e. Histogram: e. Histogram
7. In a study on 100 pregnant women to determine the average weight
gain in pregnancy the mean of the sample was 14kg with a SD of 5kg. If
the data is normally distributed the percentage of the women that will
have weight beyond the range of 4-24kg is a. 34%
b. 27%
c. 13.5%
d. 5%
e. 68%: d. 5%
, 8. Blood lactate measurements were taken from patients admitted to
UTMC hospital. The mean and standard deviation are 3.0 mmol/l
and 0.5 mmol/l, respectively. The 95% reference range for blood
lactate measurements in these patients is: a. 2.0 to 4.0
b. 1.5 to 4.5
c. 2.75 to 3.25
d. 2.5 to 3.5: a. 2.0 to 4.0
9. Lisa's score on her midterm exam was at the 50th percentile. The
grades were normally distributed. The exam average was 82 and the
standard deviation was 5. What was Lisa's score on the exam? a. 92
b. 87
c. 82
d. 68
e. 77: c. 82
10. A medical treatment has a success rate of .8. Two patients will be
treated with this treatment. Assuming the results are independent for
the two patients, what is the probability that neither one of them will
be successfully cured? a. 0.2
b. 0.5
c. 0.36
d. 0.04: d. 0.04
11. Lisa recently had a baby boy and was told that the weights of babies
born in this hospital are normally distributed and the mean is 7 lbs. 8
oz., with a standard deviation of 4 oz. Tyler's weight at birth was in the
50th percentile.
How much did the baby weigh when he was
born? a. 7 lbs., 4 oz.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Davieacademia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
