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Statistic
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∙ 12y ago
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How can descriptive statistics be used to understand a samples characteristics?
Will a sample descriptive statistics accurately estimate the underlying population's parameters?
What is descriptive data?
Descriptive data is data that is used to summarize or describe samples of data. Descriptive data is different from inferential statistics because inferential statistics uses data to learn from it.
What balance is best used to measure samples?
mass
Do you need to know the individual masses of the samples of water and salt in order to measure the change in mass when the two samples are mixed?
no
What can be used to measure the weights of samples in a scientific investigation?
a spring scale
What does a cardiac measure?
It measure pressure, oxygen and blood gases. It takes blood samples and measures the output of the heart.
How do you measure water absorption of rock samples?
by weighing the object firstweighing it after it has been in the waterthat is how you measure rock absortion
What are the features of descriptive research?
A major feature of descriptive research studies is that - quantitative representation of behavior, opinions, or phenomenon. Representative samples or entire populations so draw conclusions, specify particular characteristics they wish to study in advance of data collection
Scientists use radioactivity in rock samples to measure?
The exact age of the rock.
What does a cardiac catheter measure?
It measure pressure, oxygen and blood gases. It takes blood samples and measures the output of the heart.
What are the Tools used in descriptive statistics?
frequency distribution regression analysis measure of central tendency
What is descriptive investigation?
a descriptive investigation is a scientific ivestigation that collects data which measure or decribe objects or events. it collects qualitative & quantitative data. it includes a question, but no hypothesis ; no variables are manipulated .
