A researcher measured the height (in feet) and volume of usable lumber (in cubic feet) of 32 cherry trees. The goal is to determine if the volume of usable lumber can be estimated from the height of a tree.The results are plotted below:80 –70-60 -50–40 -30 -20 -10-60657075808590HeightThe interpretation of this scatter plot isO There is a quite linear, positive and strong relationship between height and volume.O There is a positive and weak relationship between height and volume.O There is a negative and strong relationship between height and volume.There is a quite linear, positive and weak relationship between height and volume and there is an outlier.

Scatter plot tells about the relationship between X variable and the y variable. As X variable…

Answered: A researcher measured the height (in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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10 20 30 40 50 60 70 80 Wind speed (km/h The inter quartile range for the wind speeds is
A real estate agency collects data concerning the sales of a house (in thousands of dollars) and the home size (in hundreds of square feet). The data are given in the table below. Sales Price (Y, $1,000) Home Size (X, 100 sf)______ 180 23 98.1 11 173.1 20 136.5 17 141 15 165.9 21 193.5 24 127.8 13…
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Age, x 16 25 39 45 49 64 70 29 57 22 Systolic blood pressure 109 122 143 132 199 185 199 130 175 118 4. If x is 30 , what would you expect y (in mm ??) to be?
Approximate the measures of center for following GFDT. Data Frequency 40 44 45 - 49 4 50 - 54 55 - 59 12 60 64 16 65 69 11 70 - 74 75 - 79 80 84 mode median %3D
Acid rain Based on long-term investigation, research-ers have suggested that the acidity (pH) of rainfall in the Shenandoah Mountains can be described by the Normalmodel N(4.9, 0.6).a) Draw and carefully label the model.b) What percent of storms produce rainfall with pHover 6?c) What percent of storms produce rainfall with pHunder 4?d) The lower the pH, the more acidic the rain. What isthe pH level for the most acidic 20% of all storms?e) What is the pH level for the least acidic 5% of allstorms?f) What is the IQR for the pH of rainfall?
The New York State average of price of gasoline for 2001 through 2004. We are interested in how the price is changing. Price/gal $1.345 $1.408 $1.537 $1.580 year since 2000 1 2 3 Conditions met? choose your answer... Model: price/gal = type your answer... Predict the price of gas for 2010. $ type your answer.... 2 The actual price of gas in 2010 was $2.19. What was the residual for this model. $ type your answer.... W S X # 3 e gallon d C C $ 54 r year 4 % 5 t g DELL Oll < 10 6 y b & 7 h 0 3 8 j 4 O i - 9 k m O .0
first picture is background information
When water flows across farmland, some soil is washed away, resulting in erosion. An experiment was conducted to investigate the effect of the rate of water flow (liters per second) on the amount of soil (kilograms) washed away. The data are given in the following table: Flow rate 0.31 0.85 1.26 2.47 3.75 Eroded soil 0.82 1.95 2.18 3.01 6.07 Let xx represent the flow rate variable and yy represent the variable for soil eroded. Then \bar x = 1.73, s_x = 1.38, \bar y = 2.81, s_y = 1.99xˉ=1.73,sx=1.38,yˉ=2.81,sy=1.99 Use this to complete the following calculation of the correlation coefficient for these data. r = \frac{1}{n-1}\left[\left(\frac{x_1 - \bar x}{s_x}\right)\left(\frac{y_1 - \bar y}{s_y}\right) + \left(\frac{x_2 - \bar x}{s_x}\right)\left(\frac{y_2 - \bar y}{s_y}\right) + \cdots + \left(\frac{x_n - \bar x}{s_x}\right)\left(\frac{y_n - \bar y}{s_y}\right)\right]r=n−11[(sxx1−xˉ)(syy1−yˉ)+(sxx2−xˉ)(syy2−yˉ)+⋯+(sxxn−xˉ)(syyn−yˉ)]…
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cydone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. x 1004 975 992 935 971 924 y 40 100 65 145 78 147 A USE SALT (a) Make a scatter diagram ofr the data and visualize the line you think best fits the data. * 140 1000 140 1000 120- 120 100 100 80 80 940 60 940 E 60 40 40e. 920li 40 920 40 60 80 100 120 140 940 960 980 1000 60 80 100 120 140 940 960 980 1000 x (lowest pressure (in millibars) x (lowest pressure (in millibars) x (lowest pressure (in millibars)) x (lowest pressure (in millibars) (b) Would you say the correlation is low, moderate, or strong? O low O moderate O strong Would you say the correlation is positive or negative? O positive O negative (C) Use a calculator to verity thatx - 5801, - 5,613,547, E- 575, E- 64,543 and xy - 549,281. Compute r.…
(c) Are your estimates in parts (a) and (b) upper and lower estimates? Ex- plain. (A) (b) is a lower estimate and (a) is an upper estimate since v is a decreasing function of t. (B) (a) is a lower estimate and (b) is an upper estimate since v is an increasing function of t. (C) (a) and (b) are neither lower nor upper estimates since v is neither an increasing nor decreasing function of t. (d) Let's find an overestimate and underestimate of the distance traveled by the motorcycle during this time period.
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