Question 8 In a company there are 42O employees in lower management, 310 in middle management and 130 in upper management. How many employees from each level of management should be included in a stratified sample of size 80 using the sequence above? A. 12, 29, 39 B. 28, 40, 12 С. 39, 29, 12 D. 40, 28, 12
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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