21. A new medicine is designed to reduce blood pressure, and is being tested in two doses (100 mg and 50 mg). A placebo group is also formed to compare against the two experimental groups. The reduction in blood pressure among patients in each group is as follows: 100 mg 15 11 -2 23 11 21 17 18 -5 50 mg -4 9. 7 -11 13 -5 24 31 20 -4 Placebo 3 9 -2 17 21 27 -8 14 -2 Can we say that there is a significant result in these findings? (a = .10)
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.
Please solve algebraically
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