Arithmetic mean

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  • The NAPLAN Test website enabled a practical element in regards to algebra strengths and weaknesses. The first objective to the question was to break down each part of the equation and then see how it relates to the answers. Multiplying ‘n’ by itself represented ‘n x 2’ which in algebra is ‘n2’, then it was simply continuing the equation by dividing that number by two as a way to half it and then subtracting ten. Once I had done this I was comfortable with the answer. ACARA (n.d.) identifies that in Year 7 students should be confident in the concept of variables being able to represent numbers using letters. This highlights the importance of gaining an understanding early, as all that is needed in a question like this is to recognise the arithmetic needed and how they work in an algebra context. Another way of solving the problem was not apparent other than working from back to front or the process of…

    Words: 1861 - Pages: 8
  • Goldfish Experiment

    from all trials gives a better idea about whether metabolism of goldfish is effected when in normal light or in the dark. Based on these results in all trials of the experiment, the metabolic rate of the goldfish was higher in ambient light that in the dark since average change in oxygen concentration was bigger that of the average change in oxygen consumption in the dark. The difference in average change in oxygen consumption in ambient light versus in the dark was about 16 mgO2 /(L*hr*kg).…

    Words: 1725 - Pages: 7
  • How Does Caffeine Affect Reaction Time

    time than the participants who drunk decaffeinated Cola and water. Results Table: The effect of a caffeinated drink and a decaffeinated drink in reaction time results Drink Mean of the before reaction time (mm) Mean of the after reaction time (mm) Difference (mm) Before Range (mm) After Range (mm) Before Standard Deviation (mm) After Standard Deviation (mm) Decaffeinated 119.9 119.9 0 117 108.7 54.7 49.4…

    Words: 1019 - Pages: 5
  • Indian Sugar Millsorganization Case Study

    1. 74% of the respondents were male and26% of the respondents were female. 2. 50% of the respondents fall in the age gathering of 15-25. 24% of the respondents fall in the age gathering of 25-35, 16% of the respondents fall in the age gathering of 35-45. 3. 14% respondents working for Indian Sugar Mills Association under 1 year, 18% respondents working for Indian Sugar Mills Association 1-3 years, 20% respondents 3-5 years working for Indian Sugar Millsorganization 4. 26% example of…

    Words: 822 - Pages: 4
  • Online Peer Feedback Research

    In the pre-test and post-test, the researchers looked at the mean scores of the tests. The test was based on a points system out of 100. For the more-proficient students, they received a mean score of 78.84 on the pre-test to 80.98 on the post-test. This does not show a significant change. For the less-proficient students they received a mean score of 62.75 on the pre-test to a 75.82 on the post-test (Yang and Meng, 2013, p.226). This shows much more significant…

    Words: 972 - Pages: 4
  • Initial Velocity Lab Report

    Problem: Apparatus 1: what is the relationship between height of release and the initial velocity? Apparatus 2: What is the relationship between length of the ball catcher and the final velocity of the system? Additional question: What is the percentage error of the initial velocity calculated using momentum and kinematics? Percentage error between theoretical initial velocity and experimental initial velocity? How much energy is lost? note: the initial velocity calculated using kinematics…

    Words: 1163 - Pages: 5
  • Linear Kriging Essay

    =n, and D_j=∑_(i=1)^n▒〖D_ij, j=1,2,3,…,k〗. Also, this linear equation system is the sum of both sides of the previous linear equation system fromi=1,2,3,…,n. It is more efficient because we only need to solve one linear equation system instead of solve n linear equation systems and then sum the results. 3 Proposed Alternatives to Step 1 In this section, some alternatives to step1 are introduced and tested. Clustering is a data mining technique that is used for observing interesting objects,…

    Words: 702 - Pages: 3
  • Analysis Of The Cheung Chau Bun Festival

    B. Choose the best main-idea statement for each paragraph. (1,5ms) 1. The Cheung Chau Bun Festival About 12 kilometers off the coast of Hong Kong lies the tiny island of Cheung Chau. This fishing community, whose culture is a mix of the modern and the traditional, is home to the world's only bun festival. It celebrates, among other things, the bun: a sweet bread treat. During the festival, also known as "the Festival of the Bun Hills," the children dress in colorful costumes. It also includes…

    Words: 1921 - Pages: 8
  • TEEN And CH Protocols

    TEEN and LEACH Protocols LEACH and TEENfollow self-organizing and adaptive CH selection criteria. In setup phase, CH is elected on the bases of following threshold equation1 [32]; Fig.3 and Fig.4. T(n)={■(p/(1-p(rmod 1/p) )&ifn∈G@0&otherwise)┤ (1) wherep is the desired number of CHs, r is the current round and G is the set of nodes that have not been CH in the current epoch. Epoch is the number of rounds for a CH, after which again it become eligible to become a CH. Each node generates a…

    Words: 953 - Pages: 4
  • False Memory And Regression Analysis

    My user ID number was 461357 which put me in the experimental group during this experiment. My time on day one was 67.419. During that time, I had 6 hits, 4 misses, 3 false alarms, 7 correct rejections, and a discrimination index of .732. During day 2 I had 4 hits, 6 misses, 3 false alarms, 7 correct rejections, and a discrimination index of .598, I did all of that in the time of 54.667. B. 1. If people view the same foils on both days, then they will have poorer discrimination index and…

    Words: 1273 - Pages: 6
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