What does operationalize a variable mean?
ABSTRACT: To remove ambiguity in written work and research, all relevant variables must be defined. This is known as operationalizing variables. To operationalize a variable or concept means to define it so that it can be measured and/or expressed quantitatively or qualitatively.
What does it mean to operationalize a variable quizlet?
Operationalization is the process of developing operation definitions, or specifying the exact operations involved in measuring a variable. An observation that we choose to consider as a reflection of a variable we wish to study.
How is a variable measured?
You can see that one way to look at variables is to divide them into four different categories ( nominal, ordinal, interval and ratio). These refer to the levels of measure associated with the variables. In everyday usage the convention is to then use the level of measure to refer to the kind of variable.
How do you solve algebraic expressions with variables?
Here’s how you would do it:
- (x + 3)/6 = 2/3. First, cross multiply to get rid of the fraction.
- (x + 3) x 3 = 2 x 6 =
- 3x + 9 = 12. Now, combine like terms.
- 3x + 9 – 9 = 12 – 9 =
- 3x = 3. Isolate the variable, x, by dividing both sides by 3 and you’ve got your answer.
- 3x/3 = 3/3 =
- x =1.
How do you solve an algebraic expression word problem?
You can tackle any word problem by following these five steps:
- Read through the problem carefully, and figure out what it’s about.
- Represent unknown numbers with variables.
- Translate the rest of the problem into a mathematical expression.
- Solve the problem.
- Check your work.
What are the types of algebraic expression?
There are 3 main types of algebraic expressions which include:
- Monomial Expression.
- Binomial Expression.
- Polynomial Expression.
How do you solve word problems with variables?
To solve an algebraic word problem:
- Define a variable.
- Write an equation using the variable.
- Solve the equation.
- If the variable is not the answer to the word problem, use the variable to calculate the answer.
How do you solve linear equation word problems?
Writing Systems of Linear Equations from Word Problems
- Understand the problem. Understand all the words used in stating the problem. Understand what you are asked to find.
- Translate the problem to an equation. Assign a variable (or variables) to represent the unknown. Clearly state what the variable represents.
- Carry out the plan and solve the problem.
How do you solve linear equations in two variables?
Solving Systems of Equations in Two Variables by the Addition Method
- Write both equations with x– and y-variables on the left side of the equal sign and constants on the right.
- Write one equation above the other, lining up corresponding variables.
- Solve the resulting equation for the remaining variable.
What is twice as old?
“twice as old as” means we will be multiplying by 2.
How do I calculate my father and son age?
If the age of a person is ‘x’, then ‘n’ years after today, the age = x + n. Similarly, n years in the past, the age of this would have been x – n years. Answer: Suppose that the present age of the son is = x years. Then the father’s age is (60 -x) years.
How do you solve age problems without algebra?
make two equations – considering the present age always – a + i = 42 a-11 = 3 ( i – 11) Now, solve for them – a = 26 and i = 16. The answer is a +2 i.e. 28 years.
How do I find my current age?
Hence present age of daughter is 10 years and present age of father is 40 years. So after 5 + 5 = 10 years, daughter age would be 20 years and father’s age would be 50 years. Hence father would be 50/20 = 2.5 times of daughter’s age.