Practice Test 1 Review
Applied Healthcare Statistics
This document is designed to be used after you have taken the practice
test and as you prepare for the final objective assessment. It focuses on
specific items on the practice test and is not designed to replace a general
review of modules.
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Metacognition--thinking about thinking (Click here for a short video.)
As you work through this document, you will increase your learning by:
e Before reading the explanation, rework the problem, and ask yourself:
o What type of question is this? (For example: standard
deviation, interpreting the slope...)
o What key words helped you identify the type of question?
e Now, check your answers and explanations. Ask yourself:
o Why did | miss this question?
m Did | know all the terms?
m Did | forget a step?
o How can | apply this to future questions?
e Watch the recommended video.
o Pause the video and work the problems ahead of the instructor.
e Quiz yourself on what you learned. Can you remember the key parts
of this problem and work it correctly when you redo it later today or
tomorrow?
These questions help you identify your process to do a question and help
you to do similar problems on the assessment. You are thinking about your
own thinking!
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1. Question
Given the following set of numbers:
16, -15.7, 9, -4, 3.14
Find the sum of the integers.
A. 8.44
B. 28.14
C. 25
D. 21
Answer D
Brief explanation
Integers are positive or negative but have no decimal part. The
integers are 16, 9, and —4. To find the sum, we add 16 + 9 + (—4) =
21.
Videos
Classifying Real Numbers [9:36] and Working with Real Numbers
[9:30]
Page for additional practice
Module 1: 1.02 Number Systems
,2. Question
Given the list of numbers below, what are the square roots of the
whole number?
-0.64, "4, 16, -100
A. 2 and -
B. 10 and -10
C. 0.8 and -0.8
D.4and -4
Answer D
Brief explanation
The whole number is 16. The square roots of 16 are 4 and —4. Tip:
Your calculator will give you only the positive square root. When they
ask for square roots they want both positive and negative.
Videos
Classifying Real Numbers [9:36] and Working with Real Numbers
[9:30]
Pages for additional practice
Module 1: 1.02 Number Systems and 1.18 Introduction to Square
Root
3. Question
Given the following expression:
2 + 22 x (25-16)
, Evaluate using the proper order of operations.
A. 38
B. 72
C. 144
D. 384
Answer A
Brief explanation
Use PEMDAS: 2+22*9=2+4*9=2+
36 = 38.
Video
Order of Operations and Rounding
Pages for additional practice
Module 1: 1.11 Introduction to Exponents and 1.12--1.13 Order of
Operations
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