Nineteen people ran 400 meters. Each point on the following scatterplot represents a person's time (in seconds) to complete the run and the weight(in pounds) of that person. The scatterplot also shows a line of best fit for the data.t95-85-Time (seconds)75-65-0120 140 160 180 200Weight (pounds)According to the graph, each increase of 8 pounds in a runner's weight tends to increase the runner's time by approximately how many seconds?2.02.53.0! 48°F Mostly cloudyType here to search080

Answered: Nineteen people ran 400 meters. Each…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Education The following ordered pairs give the entrance exam scores x and the grade-point averages y after 1 year of college for 10 students. (75, 2.3), (82, 3.0), (90, 3.6), (65, 2.0), (70, 2.1), (88,3.5), (93, 3.9), (69,2.0), (80, 2.8), (85, 3.3) (a))Create a scatter plot of the data. Does the relationship between x and y appear to be approximately linear? Explain.
Match the coefficient of determination to the scatter diagram. The scales on the x-axis and y-axis are the same for each scatter diagram. (a) R? = 0.12, (b) R2 = 0.98, (c) R? = 0.58 (a) Scatter diagram Eplantory (b) Scatter diagram (e) Scatter diagram Esplanatory II Eplanatory
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This table shows the systolic blood pressure of y, patients x years old. state the slope and interpret the meaning in the context of this problem.
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The ordered pairs below give the winning times (in seconds) of a 100-meter freestyle swim race at a regularly-held competition from 1984 through 2012. (1984, 54.22) (2000, 52.13) (1988, 53.23) (2004, 52.14) (1992, 52.94) (2008, 51.42) (1996, 52.80) (2012, 51.30) (a) Sketch a scatter plot of the data. Let y represent the winning time (in seconds) and let t = 84 represent 1984. (b) Sketch the line that you think best approximates the data and find an equation of the line. (Round the slope and y-intercept to one decimal place.) y = (c) Use the regression feature of a graphing utility to find the equation of the least squares regression line that fits the data. (Round the slope and y-intercept to two decimal places.) y =
The table below represents a direct variation. Fill in each blank with the correct value for A, B, and C. Only type in the value. X y A = type your answer... 9 -3 ; B = type your answer... 12 A ;C= type your answer... B 0 -6 C
A researcher explored the relationship between the percent of snow days during the month of January and the percent of students that receive an A on class finals at the same schools. The researcher collects information from 6 schools, shown in the table below. Use the graph below to plot the points and develop a linear relationship between the percent of January snow days and the percent of 'A' final exams. School Number % of Snow Days % of A Finals 1 5 25 2 7 45 3 10 50 4 12 65 5 20 70 6 25 86 Using the linear relationship graphed above, estimate the percent of 'A' finals if there are 2% snow days. Provide your answer below:

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