False
False
Ineqality
highly variable is an adjective which describes something specific; therefore, it is not definable.
If you want to test your hypothesis with a controlled experiment, you should make sure you have only one variable.
describes how to measure a variable or define a term. right out of my science book
Something that changes during an experiment. A variable is something that is bound to change and not constant In a mathematical statement a variable is something which can take on different values; it is usually represented by a letter, though a word could be used. Examples include: x + 5 (x is a variable) area_rectangle = lw = length × width (l, w, length and width are all variables), area_circle = πr² = π × radius² (r and radius are both variables) Variable means that something is liable to change, is not constant. For instance, weather is very variable in Britain. Our weather can change hourly, with rain, sun, etc.
A ________________ is a statement that describes how to measure a particular variable or define a particular term.
operational definition
operational definition
operational definition
operational definition
One gram of wood stores 16,000 J.
Operational definition
operational definition
A prediction that states both an independent and a dependent variable is called a hypothesis. A hypothesis is stated as such: if "independent statement", then "dependent statement."
For a chi-square test there is a null hypothesis which describes some distribution for the variable that is being tested. The expected frequency for a particular cell is the number of observations that would be expected in that cell if the null hypothesis were true.
Since an hypothesis is a statement based on whether the independent variable will have an effect on the dependent variable, it is best to use the words if and then. Example: If water is added to a plant then it would grow.
Helps students organize identify independent variable, dependent variable, and constants in an experimental design. This information is then used to write an if/then statement for a hypothesis.