• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6
7. 7
7
8. 8
8
9. 9
9

# Bio-Statics Laboratory

Extracts from this document...

Introduction

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.

Middle

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.. 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.

Conclusion

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

# Related International Baccalaureate Biology essays

1. ## Yeast Population

Type of Microscope: In order to count the yeast population, we used the magnifications of the microscope. We counted with the same magnification, the strongest one, and we used the same type. This was to avoid any errors and changes in the result with the other microscopes.

2. ## Genetics NOTES

in the structure of the X chromosome which doesn't match with the Y chromosome - DNA is made up of the three chemicals: sugar units, phosphates and base pairs - Complementary bases are pairs on nitrogen bases which only pair up with each other - Replication: the process when DNA

1. ## Biology Scientific Events

The drug is a practical application of scientific discoveries that are showing that RNA, once considered a mere messenger boy for DNA, actually helps to run the show. The classic, protein-making genes are still there on the double helix, but RNA seems to play a powerful role in how genes function.

2. ## Lung Capacity Fitness Level

Therefore for this experiment, all participants must weigh between 55 and 65 kilograms. Height Height is big factors that can affect vital lung capacity as the taller you are the bigger your lungs thus enabling you to have a large vital lung capacity.

1. ## How does the distribution of Plantago maior differ?

Repeat the procedure from points 1-4 at least 20 times in each environment. 6. Investigate the pH of the soil from each environment; use the pH meter to do it. 7. Note down the results. 8. Investigate the permeability of the soil from ach environment.

2. ## Methods of estimating population sizes.

in two occasions during experiment B, we decided to invalidate the throws. The quadrat for experiment A consisted of four wooden sticks whose dimensions were 10 cmx10 cm or 0.1mx0.1m, covering an area of 100 cm2 or 0.01 m2 each time it landed.

1. ## Examine the correlation between soil moisture at different heights up the slope and the ...

This measurement must be taken very carefully and precisely in order to guarantee a reliable reading. No repeats are therefore required as the reading would be the same each time. 3) This step for measuring the longest leaf should be carried out every 5 metres up until 30 metres.

2. ## Ecological studies of rice (Oryzae Sativa) populations

12 0.785 0.500 13 0.660 0.555 14 0.660 0.500 15 0.720 0.570 16 0.805 0.515 17 0.700 0.560 18 0.720 0.560 19 0.720 0.575 20 0.735 0.565 21 0.750 0.570 22 0.855 0.560 23 0.795 0.525 24 0.770 0.550 25 0.780 0.500 26 0.775 0.555 27 0.610 0.590 28 0.855

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