WGU C784 Applied Healthcare Statistics: High-Yield Practice Questions, Exam Review & Problem-Solving

WGU C784 Applied Healthcare Statistics:
High-Yield Practice Questions, Exam Review &
Problem-Solving

Temperature Conversions F = C × 1.8 +
32 C = (F−32)
÷ 1.8

Slope intercept form of a line y=mx + b
• m=slope=𝑟𝑖𝑠𝑒/𝑟𝑢𝑛
• b=y-intercept=the point (0, b)


Basic tips for inequalities in one-variable < or > is graphed using an open circle °
≤ or ≥ is graphed using a filled circle •
Flip the direction of the inequality sign when
multiplying or dividing by a negative


Measures of Center Mean=the sum of all the data points, divided by the
number of data points.
Median=the middle number when all the data points
are written in order from least to greatest.
Mode=the most frequent data point.


5 Number Summary Includes the minimum, maximum, Q1, Q2 (median), and
Q3




Finding Outliers Find the quartiles.
• Any data value less than Q1 - 1.5(IQR) is an outlier.
• Any data value greater than Q3 + 1.5(IQR) is an
outlier.

Measures of Spread Range = max - min
IQR = Q3 - Q1


• Standard deviation, if a data set Approximately 68% of the data fall within 1 standard
is normally distributed, then: deviation of the mean.
Approximately 95% of the data fall within 2
standard deviations of the mean.
Approximately 99.7% of the data fall within 3
standard deviations of the mean.