Use the report of statistical research to identify the following a) whether it was an observational study or an experiment b) whether it was retrospective or prospective c) the subjects studied, and how they were selected d) th regarding what the results may or may not indicate In a test of 100 women, those with high blood pressure did worse on tests of memory and reaction time than those with normal blood pressure. a) ldentify whether it was an observational study or an experiment. The statistical research was an b) Identify whether the study was retrospective or prospective. The study was | c) Identify the s w they were selected. prospective O A. Women retrospective O B. Women wwr rngn Drovu pressure; subjects were self selected. OC. Women with high and normal blood pressure; unknown selection process. O D. Women with high blood pressure; unknown selection process. alood pressure; subjects were randomly selected.
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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