Water Displacement method to get the Volume of an irregular solid whereas in a regular solid‚ we only multiply the length‚ width‚ and thickness of the solid. Percentage Error is the absolute value of the difference of the Theoretical value and Experimental value all over the Theoretical Value multiplied to 100. It is used to compare the results obtained to the known or accepted value. METHODOLOGY I. Materials 50-mL graduated cylinder 125-mL flask Electronic balance Block of wood Watch glass
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Types of Variables Binary variable Obsevations (i.e.‚ dependent variables) that occur in one of two possible states‚ often labelled zero and one. E.g.‚ “improved/not improved” and “completed task/failed to complete task.” Categorical Variable Usually an independent or predictor variable that contains values indicating membership in one of several possible categories. E.g.‚ gender (male or female)‚ marital status (married‚ single‚ divorced‚ widowed). The categories are often assigned numerical
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Group Assignment (Groups of five) a) Come up with a research topic b) From the topic indicate the following 1) The dependent variable 2) The independent variable 3) The extraneous variable 4) The Moderating variable 5) The Intervening Variable Research Topic Impact of a tattoo on a helping request‚ Strohmetz‚ D. B.‚ & Moore‚ M. P. (2003‚ March) A psychologist wondered how people would respond to people with tattoos‚ so he studied
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1. Triple DES Triple DES was designed to replace the original Data Encryption Standard (DES) algorithm‚ which hackers eventually learned to defeat with relative ease. At one time‚ Triple DES was the recommended standard and the most widely used symmetric algorithm in the industry. Triple DES uses three individual keys with 56 bits each. The total key length adds up to 168 bits‚ but experts would argue that 112-bits in key strength is more like it. Despite slowly being phased out‚ Triple DES still
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The proposed method is illustrated as a flow chart in Fig 3. First‚ the source node broadcast the RREQ to neighbor nodes. The neighbor nodes forward the Route Request (RREQ) to the destination node. Destination node stores the neighbor RREQ in a table and checks the RREQ. If RREQ is from the true Source node address‚ then the system is regular and begins to transmit test data packets otherwise repeat the process. Next‚ it will check the packet delivery ratio if packet delivery ratio drops to threshold
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PK – Lab Report Name: ____________________ Section: ___________________ Experimental Errors and Uncertainty Data: The data table that follows shows data taken in a free-fall experiment. Measurements were made of the distance of fall (Y) at each of the four precisely measured times. Time‚ t (s)|Dist‚ y1 (m)|Dist‚ y2 (m)|Dist‚ y3 (m)|Dist‚ y4 (m)|Dist‚ y5 (m)||σ|t2| 0|0|0|0|0|0|0|0|0| 0.5|1.0|1.4|1.1|1.4|1.5|1.3|.2|.25| 0.75|2.6|3.2|2.8|2.5|3.1|2.8|.3|.56| 1.0|4.8|4
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subject in the a) pre-test b) post-test ➢ significant differences in the performance of subject in the pre-test and post-test Research Design ➢ experimental type of research - pre-test - post-test Step 1. Asked permission of the Principal of UB Lab. Elem. School to conduct experimental study. Step 2. Administered the pre-test to the respondents – pupils were asked to answer the questions flashed on the monitor screen.
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Experimental Research When we want to learn about the humans‚ we must experiment on the subject. There are current scientific and medical research that needs to be done on human‚ in this case there will be an experiment involving a clinical drug trial; a pharmaceutical company wants to test a new sleep aid. In order to learn more about the new sleep aid‚ researchers would need to study on patients who have trouble sleeping through the night. This can be the case of insomnia or it can be symptoms
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sample and the number of fish observed in the body of water. 3. What would your experimental approach be to test this hypothesis? 4. What are the independent and dependent variables? 5. What is your control? 6. What type of graph is appropriate for this data set? Why? 7. Graph the data from Table 2 (above) in the space below. 8. Interpret the data from the graph made in Question 7. 9. Determine which of the following observations are testable. For those
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extraneous variables by using random assignment to experimental conditions and sometimes also by incorporating direct control and/or blocking into the design of the experiment. Each of these strategies—random assignment‚ direct control‚ and blocking—is described as follows; A researcher can directly control some extraneous variables. In the calculus test example‚ the textbook used is an extraneous variable because part of the differences in test results might be attributed to this variable. We could
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