how many rubber bands I need .What I did first was graph the table on the paper so that I could make a slope triangle to find out my growth and y-intercept to make an equation to see how many rubber bands I need. First I graphed the table onto my paper because I needed to know my starting point and line of best fit. Then I did a slope triangle because I needed to figure my growth which so the slope triangle was 51/11 and I divided it and got 4.6 to
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The Probability of On-Base Percentage Affecting Total Team Wins I. Abstract In the baseball world‚ On-Base Percentage is the key element to a team’s advancement to post-season play‚ because offensive domination is essential to the desired outcome‚ namely‚ winning. The following will describe the relationship between On-Base Percentage and the total amount of wins a Major League Baseball team receives using a linear regression model and other descriptive graphs. II. Introduction Essentially
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Assignment 1 1. Looking at SCORE variable‚ the skewness is -0.0511422 and excess kurtosis is 0.208336. For the normal distribution‚ skewness is zero. Since the skewness for SCORE variable is negative‚ this indicates that the distribution is skewed to the left (the long tail will be in the negative direction). For the normal distribution‚ kurtosis is three. So K-3 measures excess kurtosis. Since the excess kurtosis for SCORE variable is positive‚ the distribution is leptokurtic (it has thick tails
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A Multiple Choice (Place all answers on SCAN TRON) 1 point each Identify the choice that best completes the statement or answers the question. What is an algebraic expression for the word phrase? 1. the sum of n and 9 2. The table shows how the height of a stack of DVDs depends on the number of DVDs. What is a rule for the height? Number of DVDs 2 3 4 n Height (cm) 18 27 36 ? What is the simplified form of each expression? 3. 4. 5. What is the simplified form of each
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1. The first step in evaluating a regression model is to determine whether the sign of the estimated slope term makes sense. The second step is to test whether or not the slope term is significantly different from zero. The appropriate statistical test to determine this is a t-test since the true regression error variance is generally unknown. The third check of regression is to evaluate what percent of the variation in the dependent variable is explained by variation in the independent variable
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14/09/2013 Important Formulae_for website_for CAT2012 students RATIO – PROPORTION – VARIATION 1. If a : b : : c : d‚ then ad = bc 2. If a : b : : c : d‚ then a + b : b : : c + d : d 3. If a : b : : c : d‚ then a - b : b : : c - d : d 4. If a : b : : c : d‚ then a + b : a - b : : c + d : c - d 5. If then k = NUMBERS 1. a 3 + b 3 + c3 – 3abc = (a + b + c) (a 2 + b 2 + c2 – ab – bc – ca) 2. The product of n consecutive integers is always divisible by n! (n factorial) 3. The sum
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symmetry: The vertical line that passes through the vertex is called the axis of symmetry. Every parabola is symmetrical about its axis of symmetry. Axis of symmetry are the x value of the vertex. Axis of symmetry can be obtained through the following formula: x=- b/2a Symmetry is a very important mathematical concept. Symmetry is vital in the construction or designing of different applications including roller coasters. As Dobre and Daniel state in their paper on symmetry‚ engineers design machines
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us that the estimated intercept is -106.13 and the estimated slope for X3 is 1.968. The R2-value is 0.8047‚ mean square error is 76.87. The second predictor entered into the stepwise model is X1. The estimated intercept is -127.596‚ the estimated slope for X1 is 0.3485 and the slope for X3 is 1.8232. The R2-value is 0.933 and the mean square error is 27.575. The final predictor entered is X4. The estimated intercept is -124.20‚ the estimated slope for X4 is 0.5174‚ the slope for X1 adjusts to 0.2963
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Tutorial 11 A11.1 Data on manatee deaths due to powerboats was used to construct a linear regression model relating these deaths to the number of registered powerboats. Year 1977 1978 1979 1980 1981 1982 1983 Power boats (thousands) 447 460 481 498 513 512 526 Manatee Deaths 13 21 24 16 24 20 15 Year 1984 1985 1986 1987 1988 1989 1990 Power boats (thousands) 559 585 614 645 675 711 719 Manatee Deaths 34 33 33 39 43 50 47 The
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3√x y = 6 x3/2 = 16 Slope-Intercept Form The most common form is the slopeintercept equation of a straight line : http://www.mathsisfun.com/algebra/linear-equations.html 2/6 2014/9/16 Linear Equations Slope (or Gradient) Y Intercept Example: y = 2x + 1 (Our example from the top‚ which is in SlopeIntercept form) Slope: m = 2 Intercept: b = 1 Play With It ! You can see the effect of different values of m and b at Explore the Straight Line Graph Point-Slope Form Another common one is the
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