For the exponential model y = ab*, shown by the following graph, find b. Round your...
An exponential equation is a nonlinear regression equation of the form y= ab^x. Use technology to find and grab the exponential equation for the accompanying data, which shows the number of bacteria present after a certain number of hours. Include the original data in the graph. Note that this model can also be found by solving the equation log y= mx + b for y. Number of hours, x: 1 2 3 4 5 6 7 Number of bacteria, y:...
find an equation for the following graph of the form y=a sin(x) round answer to two decimal places if necessary Round your answers to two decimal places ifr 5 4 3+ 2+ 1 rad -628 -4.71 -3.14 -157 157 3.N 471 28 -3 y = sin(x)
a. If you decided to fit the simple linear regression model to this data, what proportion of observed variation in maximum prevalence could be explained by the model relationship? (Round your answer to three decimal places.) b. If you decided to regress UV transparency index on maximum prevalence (i.e., interchange the roles of x and y), what proportion of observed variation could be attributed to the model relationship? (Round your answer to three decimal places.) c. Carry out a test...
Find and Use an Exponential Model to Find Inputs and Outputs Use Regression to Find and Use an Exponential Model to answer the questions The numbers of polio cases in the world are shown in the table for various years. Year Number of Polio Cases (thousands) 1988 350 1992 138 1996 33 2000 3 2005 3.2 2007 1.3 Let f(t)f(t) be the number of polio cases in the world t years since 1980. Use a graphing calculator to draw a...
8. Find r if AB-16 and AD=24. r B D 9. Calculate the following. Round your answer to four places past the decimal point. cot 40° =
Find the indicated score shown in the graph to the right The 2-score is (Round to two decimal places as needed) Enter your answer in the answer box This Question: 1 pt 14 of 43 (7 co Find the Z-score that has 65.2% of the distribution's area to its right The Z-score is (Round to two decimal places as needed.) Sources
Find the arc length of the graph of the function over the indicated interval. (Round your answer to three decimal places.) y = = x3/2 + +4 у 201 15 10 5
a. Find the quartic equation describing the model. Round to three decimal places. b. Complete the table provided with the predicted oil imports from OPEC, and the error. Use the unrounded model. c. Find the average error for the model. Use the unrounded model. d. The scatter plot of the data is shown. Sketch the graph of the model showing how it relates to the scatter plot. e. Using the unrounded model, what would be the predicted oil imports from...
Assume the random variable x is normally distributed with mean y = 50 and standard deviation o=7. Find the indicated probability P(x > 40) P(x >40) - (Round to four decimal places as needed.) Assume the random variable x is normally distributed with mean = 88 and standard deviation o = 4. Find the indicated probability P(76<x<85) P(76<x<85)= (Round to four decimal places as needed.) Assume a member is selected at random from the population represented by the graph. Find...
The accompanying data file contains 20 observations for t and yt. Actual series are plotted along with the superimposed linear and exponential trends. t y t y t y t y 1 1.91 6 4.93 11 5.96 16 15.58 2 3.57 7 6.78 12 9.02 17 12.33 3 5.83 8 4.58 13 9.52 18 13.95 4 5.39 9 7.19 14 14.02 19 15.63 5 2.78 10 8.81 15 14.57 20 19.77 The accompanying data file contains 20 observations for tand...