Group of answer choices as it was omitted
a. matching
b. randomizing
c. counterbalancing
d. analysis of co-variance
Answer: Randomizing
Explanation:Randomizing, a statistical theory in the design of experiment generally used in randomized controlled trials of experimental research is defined as a method which involves randomly assigning experimental units to any treatment group which is based on chance and not choice. Randomization reduces or eliminate bias and controls extraneous variables (an unnecessary variable which is not the Independent Variable that can influence the dependent variable) that could affect results giving a more reliable results.
<span>High
amplitudes are associated with louder sounds.
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<span>Amplitude is the size of vibration that determines how
loud the sound is. If vibrates more it will make a louder sound. This property of sound is what we increase when we want to put the music louder.
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The private system of education in which our forefathers were educated included home, school, church, voluntary associations such as library companies and philosophical societies, circulating libraries, apprenticeships, and private study. It was a system supported primarily by those who bought the services of education, and by private benefactors. All was done without compulsion. Although there was a veneer of government involvement in some colo nies, such as in Puritan Massachusetts, early American education was essentially based on the principle of voluntarism.
You have not put the choices
B he sped up the westward expansion by purchasing the Louisiana territory for 15$ million and sending Meriwether Lewis and William clark on an expedition with the corps of discovery
