• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Bio-Statics Laboratory

Extracts from this document...


Introduction * 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. ...read more.


T-Test: According to the Encyclop´┐Żdia 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.. Here is the data table of middle finger (right hand) size (PD The variable is in cm): Bio-Statistics: Comparation of the middle finger length N Male Population Female Population 1 10,5 9,8 2 10,2 9 3 10 8,5 4 10 8,5 5 11,3 8,6 6 10,3 9 7 11,2 9 8 10 9 9 10,2 8,1 10 10 9,4 11 10,5 10,3 12 10,5 9,6 13 10,5 9,6 14 9,7 9 15 9 9 Mean 10,26 9,093333333 Mode 10,5 9 Range 2,2 2,2 Variance 0,312571429 0,324952381 ...read more.


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. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Genetics NOTES

    small piece of DNA with a base sequence identical to part of a gene which enables it to stick to a specific gene - Gene probes are used to recognize the base sequence of genes associated with disease. Also, DNA samples from embryos can be tested with probes to determine

  2. Lung Capacity Fitness Level

    Sitting up straight prevents any blockages of the airways. Some participants crouched while taking the experiment, but after some altering participants were able to sit in the correct position and posture and testing was redone. * Participants who forcefully breathe out and can sustain their breath for a while achieved a higher value of lung capacity on the spirometer.

  1. Yeast Population

    Time: Since we are measuring the yeast population, I had set a certain limit of time, which was 24 hours. By making it 24 hours, I had the same given time for each trial, making the result as accurate as possible. Apparatus, Quantity 500mL Beaker (6)

  2. How does the distribution of Plantago maior differ?

    * Stop the stopper after 2 minutes. * Measure the volume of collected water in the plastic container. * Note this volume down. 9. Try to figure out whether the Plantago major from two different environments had already specialized or not.

  1. IB Genetic Unit Notes

    Foreign DNA is cut by the same enzyme 3) The foreign DNA is inserted into the T-DNA of the plasmid 4) The plasmid is reinserted into the bacterium 5) The bacterium is used to insert theT-DNA carring the foreign gene into the chromosome of a plant cell 6) The plant cells are grown in culture 7)

  2. Investigating the Probability Associated with Genealogy

    experiment, the phenotypes of the parents are known for certain and the genotype must be determined by probability. Thus, the genotype is dependent on the phenotype. Part 2: Independent: Genotypes and phenotypes of parents Dependent: Genotypes of offspring Controls: The same two coins (which are both the same type of coin-a penny)

  1. Experimental Design Notes

    Observation and analysis of data o Conclusions through inductive reasoning using observation o Ex. Jane Goodall and chimpanzee behavior * Hypothesis Based o Potential answer to a well framed question o Educated guess based on experiment and data available from previous experiments and discovery science * Theory: a hypothesis that

  2. Ecological studies of rice (Oryzae Sativa) populations

    Table 3: Visual characteristics of the two populations of rice used in experiment. Population A Image Population B -Thinner / smaller width -Longer in length -Wider / larger width -Shorter in length Table 4: Lengths/cm (±0.01cm) of 30 randomly selected rice grains from two different populations of Oryzae Sativa, mean length/cm (±0.01cm)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work