WGU C784 - APPLIED HEALTHCARE STATISTICS
OBJECTIVE ASSESSMENT #1| QUESTIONS AND
ANSWERS
1. What type of data is represented by blood types (A, B, AB, O)?
a. Interval
b. Nominal
c. Ordinal
d. Ratio
Nominal data consists of categories with no inherent order,
such as blood types.
2. Which level of measurement is weight classified as?
a. Ordinal
b. Nominal
c. Interval
d. Ratio
Weight has a true zero and equal intervals, making it ratio-
level data.
3. The median is best used when data are:
a. Symmetrical
b. Skewed
c. Uniform
d. Continuous
, The median is less affected by outliers and skewness than
the mean.
4. What measure of central tendency is affected most by outliers?
a. Mean
b. Mode
c. Median
d. Range
The mean can be distorted by extremely high or low
values.
5. Which statistical graph is best used to show the distribution of a single
quantitative variable?
a. Bar chart
b. Pie chart
c. Histogram
d. Scatterplot
A histogram displays frequency distributions for continuous
data.
6. A patient satisfaction survey includes the responses: Satisfied, Neutral,
Unsatisfied. What level of data is this?
a. Ratio
b. Nominal
c. Ordinal
d. Interval
, Ordinal data has a meaningful order, but intervals
between categories are not equal.
7. What is the mode in this data set: {2, 3, 4, 4, 5, 6}?
a. 3
b. 2
c. 4
d. 5
The mode is the most frequent value, which is 4 in this
case.
8. Which of the following describes the spread of data?
a. Mean
b. Median
c. Standard deviation
d. Mode
Standard deviation measures how much values deviate
from the mean.
9. In a positively skewed distribution, the mean is:
a. Less than the median
b. Greater than the median
c. Equal to the mode
d. Equal to the median
OBJECTIVE ASSESSMENT #1| QUESTIONS AND
ANSWERS
1. What type of data is represented by blood types (A, B, AB, O)?
a. Interval
b. Nominal
c. Ordinal
d. Ratio
Nominal data consists of categories with no inherent order,
such as blood types.
2. Which level of measurement is weight classified as?
a. Ordinal
b. Nominal
c. Interval
d. Ratio
Weight has a true zero and equal intervals, making it ratio-
level data.
3. The median is best used when data are:
a. Symmetrical
b. Skewed
c. Uniform
d. Continuous
, The median is less affected by outliers and skewness than
the mean.
4. What measure of central tendency is affected most by outliers?
a. Mean
b. Mode
c. Median
d. Range
The mean can be distorted by extremely high or low
values.
5. Which statistical graph is best used to show the distribution of a single
quantitative variable?
a. Bar chart
b. Pie chart
c. Histogram
d. Scatterplot
A histogram displays frequency distributions for continuous
data.
6. A patient satisfaction survey includes the responses: Satisfied, Neutral,
Unsatisfied. What level of data is this?
a. Ratio
b. Nominal
c. Ordinal
d. Interval
, Ordinal data has a meaningful order, but intervals
between categories are not equal.
7. What is the mode in this data set: {2, 3, 4, 4, 5, 6}?
a. 3
b. 2
c. 4
d. 5
The mode is the most frequent value, which is 4 in this
case.
8. Which of the following describes the spread of data?
a. Mean
b. Median
c. Standard deviation
d. Mode
Standard deviation measures how much values deviate
from the mean.
9. In a positively skewed distribution, the mean is:
a. Less than the median
b. Greater than the median
c. Equal to the mode
d. Equal to the median
