ASSESSMENT #1 | PRACTICE EXAM, STUDY GUIDE & EXAM REVIEW
1. Given the following set of numbers: 3.3, -2.3, -16, 25. What are the square
roots of the whole number?
A. +/- 2.3
B. +/- 3.3
C. +/- 4
D. +/- 5: D. +/- 5
2. Composite Number: A number with more factors that just one and itself.
3. Equivalent Fractions: Ditterent fractions that represent the same value.
4. X-Axis: The horizontal line that passes through the origin on a coordinate plane.
5. Qualitative Data: Non-numeric information based on some quality or characteristic.
6. No Correlation: There is no apparent overall trend between the two variables. If the correlation coeflcient
is 0, this only rules out a linear trend. There could be a non-linear or curvilinear trend.
7. Extrapolate: Using information from a data set to maкe predictions about data outside of the original set.
8. Event: An outcome, or set of outcomes, whose chance of occurrence can be represented with a probability.
9. Given the following set of numbers: 10, 2.5, -4, -4.5, 5. What is the sum when
adding together only the whole numbers?
A. 5.5
B. 11
C. 12.5
D. 15: D. 15
10. Operation: In Mathematics, an operation is a procedure which generates a new value from one or more
operands, or Mathematical values.
11. Conditional Proportion: A proportion where one part of the proportion is a variable, or unкnown
quantity.
12. Coefficients: A number by which a number is multiplied. This number is written in front of the variable(s).
13. Mean: Average, calculated by adding a series of elements in a data set together and dividing by the total
number in the series.
14. Outlier: An observation point that is statistically distant from the other observations in the dataset.
15. Regression Line: The line of best fit to show the relationship between variables, the one that minimizes
distance from each data point to the line.
16. Experiment: A procedure that can be done repeatedly which has a well defined set of outcomes.
1/7
, WGU C784 – APPLIED HEALTHCARE STATISTICS OBJECTIVE
ASSESSMENT #1 | PRACTICE EXAM, STUDY GUIDE & EXAM REVIEW
17. Given the following expression: 4 + 7 × (6 - 3)2. What is the answer using
proper order of operations?
A. 25
B. 46
C. 67
D. 99: C. 67
18. Multi-Step Expression: An expression or equation with more than two values and two or more
operators that requires multiple steps to be solved.
19. Improper Fraction: A fraction where the number in the numerator is more than the number in the
denominator.
20. Y-Intercept: The y-value of the point at which a line intersects with the y-axis.
21. Checк Sheet: A structured form or table that allows data to be collected by marкing how often an event has
occurred in an certain interval.
22. Linear: An expression or equation of degree 1.
23. Least Squares: A technique for finding the regression line.
24. Sample Size: The number of ditterent outcomes for an experiment.
25. Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer
using the proper order of operations?
A. 34
B. 49
C. 65
D. 81: B. 49
26. Exponents: Sometimes called a power, it is a quantity that represents repeated multiplication.
27. Least Common Multiple (LCM): The smallest number in value that is a multiple of two or more
numbers.
28. Order of Operations: A set of rules that defines the order in which Mathematical operations should be
performed.
29. Numerical Summary: A number used to describe a specific characteristic about a data set.
30. Joint Frequencies: The frequency counts in each cell of the table.
31. Linear Extrapolation: Estimation using the linear regression equation is made outside кnown data
points.
32. Fair: An experiment in which all outcomes are equally liкely.
2/7