HLTH 501 BIOSTATISTICS ACTUAL EXAM
PAPER WITH 100% CORRECT SOLUTIONS
FOR 2026.
◍57694122
According to the data, which measure, is a better measure of
dispersion? Answer: standard deviation
◍ Misclassification bias often occurs in case-control studies. Answer:
True
◍ The incidence rate of X disease in patients receiving the new
medication is calculated by: Answer: patients who are receiving the
new medication and have X disease / total follow-up (years) of the
patients who are receiving the new medication ( times (x) 1000 to
make a whole number if necessary) (a/b if set up in correct way)
◍ A design that is a very detailed report of the specific features of a
particular participant or case is known as? Answer: case report
◍ The Cumulative incidence is computed as the number of persons
who develop a disease during a specified period over the number of
persons examined at baseline Answer: false
, ◍ 1,000 people are enrolled in a 10-year cohort study. At the start of
the study, 100 have diagnosed CVD. Over the course of the study, 80
people who were free of CVD at baseline develop CVD. What is the
cumulative incidence at 10 years? Answer: 0.089 = 80/900: the
number of new events or cases of disease divided by the total number
of individuals in the population at risk for a specific time interval.
◍ Biostatistics is integral to the field of epidemiology, which is
defined as study of health and illness in human populations, patterns
of health or disease, and the factors that influence these patterns.
Answer: True
◍ The best numerical summaries for dichotomous, ordinal, and
categorical variables are relative frequencies. Answer: true
◍ Incidence of disease is the proportion of individuals with the
condition (disease) at a single point in time Answer: false
◍ The following data were collected as part of a study of coffee
consumption among graduate students. The following reflect cups per
day consumed: 3, 4, 6, 8 ,2, 1, 0, and 2. The standard deviation is
approximately 4. Answer: false: use excel to find stdev().
◍ Assume a new measure of Intelligence Quotient (or IQ) has been
developed. The mean IQ for the population is 100 and the standard
deviation is 15. The standard deviation indicates the average distance
an individual data value is from the mean is about 15 IQ points.
Answer: true
PAPER WITH 100% CORRECT SOLUTIONS
FOR 2026.
◍57694122
According to the data, which measure, is a better measure of
dispersion? Answer: standard deviation
◍ Misclassification bias often occurs in case-control studies. Answer:
True
◍ The incidence rate of X disease in patients receiving the new
medication is calculated by: Answer: patients who are receiving the
new medication and have X disease / total follow-up (years) of the
patients who are receiving the new medication ( times (x) 1000 to
make a whole number if necessary) (a/b if set up in correct way)
◍ A design that is a very detailed report of the specific features of a
particular participant or case is known as? Answer: case report
◍ The Cumulative incidence is computed as the number of persons
who develop a disease during a specified period over the number of
persons examined at baseline Answer: false
, ◍ 1,000 people are enrolled in a 10-year cohort study. At the start of
the study, 100 have diagnosed CVD. Over the course of the study, 80
people who were free of CVD at baseline develop CVD. What is the
cumulative incidence at 10 years? Answer: 0.089 = 80/900: the
number of new events or cases of disease divided by the total number
of individuals in the population at risk for a specific time interval.
◍ Biostatistics is integral to the field of epidemiology, which is
defined as study of health and illness in human populations, patterns
of health or disease, and the factors that influence these patterns.
Answer: True
◍ The best numerical summaries for dichotomous, ordinal, and
categorical variables are relative frequencies. Answer: true
◍ Incidence of disease is the proportion of individuals with the
condition (disease) at a single point in time Answer: false
◍ The following data were collected as part of a study of coffee
consumption among graduate students. The following reflect cups per
day consumed: 3, 4, 6, 8 ,2, 1, 0, and 2. The standard deviation is
approximately 4. Answer: false: use excel to find stdev().
◍ Assume a new measure of Intelligence Quotient (or IQ) has been
developed. The mean IQ for the population is 100 and the standard
deviation is 15. The standard deviation indicates the average distance
an individual data value is from the mean is about 15 IQ points.
Answer: true
