Bio stats lab2 - Brooke Keverline Biology 201: Dr. Bill...

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Brooke Keverline Biology 201: Dr. Bill Alexander Thursday 10:00
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Introduction: Everyday, objects or events are encountered and classified into different categories. This is often done subconsciously, like when animals or plants are identified by different names or the batting averages of baseball players. However, when this is done on purpose and the categories are organized and examined a part of science called statistics is being used. Most often, statistics is done with numerical data , but in general it refers to the interpreting of things put into any category ranked or not. Statistics are used in almost every profession whether it’s in politics (polls and delivering information about the economy) or anything where the reliability is needed. Statistics is often thought of as being based on the theory of probability. The probability theory is often defined as the number of favorable outcomes divided by the total number of outcomes as long as all outcomes have an equal chance of happening. This definition is sufficient as long as probability is not being studied in depth. If that is the case, then the fact that only experiments with a finite number of number of possible outcomes must be considered as well as the fact that equal chance also refers to outcomes being equally probable. Using the word to define the word hinders the ability to make a mathematical equations to interpret data. The statistics that are used by most major companies and for commercial purposes are mainly based on the theory of rational probability. This type of probability is interested only in the data that can be repeated, observed, and logically extrapolated. Probability theory gives the scientist the ability to find the probable outcome of a selection of a certain event given the original population; statistics can allow the scientist to find the original given the selection. Statistics and probability tend to overlap
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continually because of this relationship. Also, some of the overlap can be contributed to the fact that in both instances the end result of the calculations are a statement of the frequency of occurrence, not the individual chance. It is necessary to state that while probability and statistics can be used hand- in-hand to describe numerous events, these two theories should not be used to attempt to predict any and everything that can occur. These two theories can be used to interpret data many ways which may be incorrect, and it is up to the scientist to interpret the data the way it should be interpreted. Methods and Materials: Coin Tossing For this test, a coin was tossed ten and then one hundred times. Jonathan Beam was the designated flipper. The rested the coin on his thumb, flipped it, and then caught it and put it on his wrist. If the quarter fell on the ground, it was thrown out and redone. The data was gathered and all other lab
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This note was uploaded on 10/12/2011 for the course BIOLOGY 100 taught by Professor Smith during the Spring '11 term at South Carolina Upstate.

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Bio stats lab2 - Brooke Keverline Biology 201: Dr. Bill...

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