We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Bio-Statics Laboratory Essay Sample

  • Pages: 4
  • Word count: 1,026
  • Rewriting Possibility: 99% (excellent)
  • Category: biology

Get Full Essay

Get access to this section to get all help you need with your essay and educational issues.

Get Access

Introduction of TOPIC

* Historical Background:

Biostatics is the application of statics to a wide range of topics in biology, it is base in the design of biological experiments, is mostly use in the camp of medicine and agriculture; the collection, summarization, and analysis of data from those experiments; and the interpretation of, and inference from, the results.

Biostatistics is routinely used to drive biology experiments. Data is gathered and analyzed before, during, and after a biology experiment, with the intent to come to some form of logical conclusion about what might not be exactly empirical results. On the other hand, a biostatistics experiment can be entirely mathematical

* Static Value:

Average: According to the Thesaurus dictionary, average is: “Something, as a type, number, quantity, or degree, that represents a midpoint between extremes on a scale of valuation.” The average is taken by the sum of all data and then dividing the result by the number of data. It is used for having a middle and sole number in a set of data that can represent the whole set.

Median: In statistics, the median is the numeric value that separates the higher half of a sample, population of probability distribution, from the lower half. When the data is even, the median can give us a good feel about the rank of the set of values.

Mode: In statistics, the mode is the most frequently occurring value of a data set. The mode gives us the value that is most likely to happen. However, the mode makes more sense with nominal values (non-numerical values)

Range: The statistic range (R) is the length of the smallest interval which contains all the data. It is the difference between the highest and the lowest values in the set and it provides an indication of statistical dispersion.

Variance: It is a measure that shows how spread out a distribution is. It describes how far the values of a set lie from the mean, in other words, it is a measure of dispersion. It is the mean of the squared deviation of a variable from its expected value or mean.

Standard Deviation: In statistics, the standard deviation is the square root of the

Sorry, but full essay samples are available only for registered users

Choose a Membership Plan
variance (i.e. the square root of the square of the mean error). It is a measure of dispersion, for it shows how much variation there is from the average. When the standard deviation is low, it indicates that the data are close to the mean, while a high standard deviation indicates that the data is spread out a large range of values.

Standard Error: According to the Mosby’s Dental Dictionary, standard error is “A measure or estimate of the sampling errors affecting a statistic; a measure of the amount the statistic may be expected to differ by chance from the true value of the statistic.” The standard error is the result of the samples’ standard deviation divided the square root of the number elements in the sample.

T-Test: According to the Encyclop�dia Britannica, the student’s t-test is “in statistics, a method of testing hypotheses about the mean of a small sample drawn from a normally distributed population when the population standard deviation is unknown.”

Data Colection:

The process of the data obtaining, was very simple, the objective was to make two data collections, one of some human anatomical part of two different populations, and the last one was of two different plants population that share the same environment.

The group decide to measure the large of the middle finger, we take the example of the female and the male population of one same grade, to analyze the relation between this two populations..

* What does the value mean?

In the first case, the one of the middle fingers, the correlation was of 0.13, that means that this to populations are comparable, the correlation level is near to 0, by the other side the T value notes, that there is more than a 50% of probability, that this compatibility is not coincidence, so we can conclude that this two population are similar, and comparable, this is a result expected because, this two populations are of the same specie and age.

In the second case, the one of the length of the leaves, the correlation is of -0.0118, they are not exactly the same, but they have a low level of compatibility, but the T value expose that it is a huge percent of probability that his values are causality. And is because actually, this two populations are two different species, so they are not comparable at all.

* Is Biostatistics important for science

The biostatics give the possibility to any camp of science, to make deeper and exact studies of population or phenomena, the biostatics give the chance to find similarities, and to make comparations of populations, is a necessary tool to analyze nature. The statistics part involves the accumulation, tracking, analysis, and application of data. Biostatistics is the use of statistics procedures and analysis in the study and practice of biology. As such, it has many real-world and scientific applications.

* What was bad in the practice

During the practice, maybe was committed a mistake of interpretation in the T value table, so the analysis is not 100% trustable .

* Who it can be improved

For the next time, the solution is jut in consulting and discus this type of question during class, beside the rest of the laboratory was take in a satisfactory way.

We can write a custom essay on

Bio-Statics Laboratory Essay Sample ...
According to Your Specific Requirements.

Order an essay

You May Also Find These Documents Helpful


Title: Isolation of plant DNA from onion Introduction DNA is the hereditary material of all living organisms and therefore the isolation of DNA is essential to geneticists and molecular biologists and scientists interested in studying hereditary diseases. Almost all cells contain DNA, but not all have equal amounts and therefore it is important to select the source of DNA carefully. DNA is an actual thing, found in our bodies, in very large quantities. In fact, it is found in every living thing except bacteria (Walter, 2017). It is DNA that determines who we are, but DNA is made up of the same basic materials as are found in the rest of bodies. It has the biochemical property of being polar, which allows us to separate it from a solution using the electrochemical properties of other things found in our bodies, such as proteins (Switzer, 2009). DNA extraction is a fairly...

A Study of the PH Levels of...

Hypothesis: The lowest priced soap should have least Ph difference while the more expensive ones should have a higher PH difference. Method: First we note the price of each brand of soap and cut bits off the soap. Then we measure the bits. We place the piece of soap in beakers and fill it with water. We fill another beaker with water. After a week we check the ph of the beaker mixed with bits of soap and the ph value of the beaker with plain water. We do this likewise for all brands of soaps. Then we must calculate the difference between initial ph of the water and the final ph. Materials required: 30*2 Beakers, Water, 30 Different brands of Soap, Blade (for cutting soap) and a weighing scale. Qualitative data: After keeping the soap in water I noticed that the soap particles would often get discoloured inside water....

Urinalysis Lab Case

From analyzing the different urine samples containing glucose, albumin, an altered pH, and ketones, many observations were made. Through Benedict’s test, the Biuret test, the pH test and the odour test, many different characteristics were found. Ultimately, the unknown sample was found through these 4 tests. It was notable that the urine sample containing Benedict’s solution and glucose turned to a brownish-red color when heated. Benedict’s solution is used to test for the presence of an aldehyde or ketone functional group (Gurien, 2008), in this test glucose was being searched for. The color change to a brick red color indicated a positive result. However, when Benedict’s solution was added to the control, no changes were evident. When Benedict’s reagent was tested on the unknown sample, no changes were prevalent, indicating that no aldehyde or ketone functional group was present in the sample. In the second test, Biuret reagent was used...

Popular Essays


Emma Taylor


Hi there!
Would you like to get such a paper?
How about getting a customized one?