Measures of central tendency? and what's the importance of it in Medical Laboratory Technology ?
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Answers
Answer:
Measures of Central Tendency: Mean, Median, and Mode. A measure of central tendency is a summary statistic that represents the center point or typical value of a dataset. These measures indicate where most values in a distribution fall and are also referred to as the central location of a distribution.The major role of a medical laboratory is to assist in the diagnosis and treatment of diseases by performing qualitative, quantitative or screening test procedures or examinations on materials derived from the human body.
Key Skills: Attention to detail and ability to understand and follow procedures
Degree Level: Associate degree or certificate
Licensure/Certification: Licensure requirements vary by state.
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Explanation:
Measures of central tendency are some of the most basic and useful statistical functions. They summarize a sample or population by a single typical value.
The two most commonly used measures of central tendency for numerical data are the mean and the median
.Mean: The average of all data points
Median: The data point where half of the data lies above and half below it
Mode: The most common value in the data
Mean
Synonyms: average, arithmetic mean.
Gives an “expected value” (not literally)
The sample mean, written as X¯, equals the sum of observations divided by the size of the sample.
X¯=∑ni=1Xin
The population mean, written as μ, is analogous to the sample mean, but for the whole population.
So for our 1 bedroom apartment data: X¯ = $5505 / 15 = $367
Median
Also known as 50th percentile, the sample median is the middle number (or the arithmetic mean of the two middle numbers in the case of an even number of observations) when the observations are written out in order.
The population median is the 50th percentile in the whole population.
Order the values from the smallest to the largest, and find the median. For our 1 bedroom appartment example: $375 is the median; there are seven values above and below this value.