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Q. A sample of 12th grade students who took the National Assessment of Education Progress year 2000 mathematics test had a mean score of 250. the variable test scores is quantitative. True or False.
Answer:
True
Explanation:
In the given problem, test score is a quantitative variable since it is numeric and can be measured.
Other examples may include age, weight, salaries, etc
On the other hand, we have qualitative variables that can not be measured but instead they are labeled or categorized such as
colors (black, pink, green, purple, yellow)
gender (male, female, other)
cat breed (Persian, Maine, Rag doll, British, Russian blue)
Answer:
Instrumental music (genre)
Explanation:
In commercial popular music, instrumental tracks are sometimes renderings, remixes of a corresponding release that features vocals, but they may also be compositions originally conceived without vocals.
To some people, music with lyrics can be very distracting, particularly when a complex task or project needs to be completed. However if you need to simply answer a few emails or read over a few tasks,instrumental music can provide a calming and relaxing background noise.
Answer:
d) determine a cause-and-effect relationship.
Explanation:
The experiment is a type of scientific research that aims to obtain the causal relationship (cause and effect) between two variables.
Thus, the researcher manipulates and controls one or more independent variables and observes the variation in the dependent variables.
For example, suppose you suspect that the number of colors available increases the number of phones sold. At first, you analyze the normal selling rate with traditional colors. In a second moment you increase the amount of colors available and compare the new sales rate with the natural rate. If there is a difference, the sales level (dependent variable) was affected by the independent variable (available colors).
Experiments allow researchers to determine cause-and-effect relationships by controlling variables and manipulating the independent variable. Through experimental research, developmental psychologists can make causal statements about variables important for the developmental process. However, caution is needed when applying findings from the laboratory to natural environments.
Experiments allow researchers to determine a cause-and-effect relationship. In an experiment, researchers have significant control over extraneous variables and manipulate the independent variable to study its effect on the dependent variable. Through experimental research, developmental psychologists can make causal statements about variables important for the developmental process. However, researchers must be cautious about whether the findings from the laboratory translate to an individual's natural environment.
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The factory working condition does not improve in the early industrial revolution.
In America, the significant industrial growth began in the early 1800's and continues to improve after the American Civil War.
The Era brought about efficiency of work and provide employment opportunities. The era marked the use of machines which replaced the use of hand for manual work.
Inadvertently, the revolution of the Industry improves quality of clothing, improves the average person's diet and improves transportation system in the United state.
Therefore, the correct answer is A because the revolution of industries does not improves the factory working condition.
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B. participation in all religious events
C. participation in all cultural events
D. the ability to serve as a political leader
Please select the best answer from the choices provided
A
B
с
Answer:Which of the following rights was given to both the men and women of ancient Greece?
A. representation in court
this the best answer __>B. participation in all religious events
C. participation in all cultural events
D. the ability to serve as a political
Explanation:
B
Answer:
i'm not sure but i think its D
Explanation: