C784 Applied Healthcare Statistics: Comprehensive Exam
Review, Practice Questions & Problem-Solving
Discrete Data (Quantitative) Numerical data values that can be COUNTED (number of
student in a class)
continuous data (quantitative) Numerical data values that can be MEASURED
(height, weight, temperature, length) (not categorical)
Addition Add & and keep the sign the same
Rule (Same (ex: 3+2=5; -3+(-2)= -5
Rule)
Addition Rule Subtract & and keep the sign of the Larger Number
(Opposite Sign) (Ex: -3+ 2= -1; 3+(-2) =1)
Subtraction Rule Keep, Change, Flip, then follow rules of addition to simplify
(ex: -3 - 2 = -3 (k) +(c) (-2)(f))
Box Plot (Box and Whisker Plot) a graphical representation showing the five-number
summary of data (minimum, lower quartile, median, upper
quartile,
maximum)
Multiplication & Division Rule your answer is positive
(Same Sign) (ex: 2*3=6; -6/-3= 2)
Multiplication & Division Rule your answer is always negative
(Opposite Sign) (ex: -2*3=-6; -6/3= -2)
Zero Will result in the same sum
(Adding and Subtracting) (ex: -2 +0= -2; 3-0= 3)
Multiplication property of zero Any number times zero equals zero
(Ex: 2*0= 0)
,Dividing Zero by any Number any number divided by zero equals zero
(ex: 0/-3= 0)
Dividing Any Number by Zero When you divide a number by zero the answer is always
"undefined"
(ex: 3/0= undefined)
Exponent A mathematical notation indicating the number of times a
number is multiplied by itself
(ex: 5 is the base 2 is the exponent)
A base with an exponent of 1 gives the same number of the base
Non-zero number with an exponent of 0 equals 1
Using Order of Operation 1. First do all operations inside parentheses.
2.Next, do any work with exponents or roots.
3.Working from left to right, do all multiplication and division.
4. Finally, working from left to right, do all addition
and subtraction
Factors Numbers that are multiplied together to get a product
Finding Factors of a Number divide the given number by numbers 1-12
Prime numbers numbers who have 1 and itself as factors- it cannot be divided
evenly
(ex: 2,3,5,7)
, Find a Prime Number divide each of numbers by 1-12 any number that has a factor
other than 1 and itself is not prime
Prime Numbers has to be divisible by 5
Any number that ends in a 5 or 0
Prime Numbers it has to be divisible by 2
If a number ends in an even value
Composite numbers are has at least one positive factor other than 1 and itself
(Ex: 6- 1,2,3,6)
Prime Factorization
Creating a Factor Tree 1.Write the number at the top
2.Find one factor of the number- it can be any factor
3.Draw two lines from the number and then write the factor
and the quotient when the number being factorized is divided
by its factor
4. Examine the two factors you have written. Are either
of them composite? If so, draw two lines to that factor and
find its factors
5.Repeat the process above until you have only prime
factors in the bottom rows
GCF (Greatest Common Factor) the largest dividing factor they both have in common
Review, Practice Questions & Problem-Solving
Discrete Data (Quantitative) Numerical data values that can be COUNTED (number of
student in a class)
continuous data (quantitative) Numerical data values that can be MEASURED
(height, weight, temperature, length) (not categorical)
Addition Add & and keep the sign the same
Rule (Same (ex: 3+2=5; -3+(-2)= -5
Rule)
Addition Rule Subtract & and keep the sign of the Larger Number
(Opposite Sign) (Ex: -3+ 2= -1; 3+(-2) =1)
Subtraction Rule Keep, Change, Flip, then follow rules of addition to simplify
(ex: -3 - 2 = -3 (k) +(c) (-2)(f))
Box Plot (Box and Whisker Plot) a graphical representation showing the five-number
summary of data (minimum, lower quartile, median, upper
quartile,
maximum)
Multiplication & Division Rule your answer is positive
(Same Sign) (ex: 2*3=6; -6/-3= 2)
Multiplication & Division Rule your answer is always negative
(Opposite Sign) (ex: -2*3=-6; -6/3= -2)
Zero Will result in the same sum
(Adding and Subtracting) (ex: -2 +0= -2; 3-0= 3)
Multiplication property of zero Any number times zero equals zero
(Ex: 2*0= 0)
,Dividing Zero by any Number any number divided by zero equals zero
(ex: 0/-3= 0)
Dividing Any Number by Zero When you divide a number by zero the answer is always
"undefined"
(ex: 3/0= undefined)
Exponent A mathematical notation indicating the number of times a
number is multiplied by itself
(ex: 5 is the base 2 is the exponent)
A base with an exponent of 1 gives the same number of the base
Non-zero number with an exponent of 0 equals 1
Using Order of Operation 1. First do all operations inside parentheses.
2.Next, do any work with exponents or roots.
3.Working from left to right, do all multiplication and division.
4. Finally, working from left to right, do all addition
and subtraction
Factors Numbers that are multiplied together to get a product
Finding Factors of a Number divide the given number by numbers 1-12
Prime numbers numbers who have 1 and itself as factors- it cannot be divided
evenly
(ex: 2,3,5,7)
, Find a Prime Number divide each of numbers by 1-12 any number that has a factor
other than 1 and itself is not prime
Prime Numbers has to be divisible by 5
Any number that ends in a 5 or 0
Prime Numbers it has to be divisible by 2
If a number ends in an even value
Composite numbers are has at least one positive factor other than 1 and itself
(Ex: 6- 1,2,3,6)
Prime Factorization
Creating a Factor Tree 1.Write the number at the top
2.Find one factor of the number- it can be any factor
3.Draw two lines from the number and then write the factor
and the quotient when the number being factorized is divided
by its factor
4. Examine the two factors you have written. Are either
of them composite? If so, draw two lines to that factor and
find its factors
5.Repeat the process above until you have only prime
factors in the bottom rows
GCF (Greatest Common Factor) the largest dividing factor they both have in common
