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The following table shows the relationship between the speed of a car (mph) and the average stopping distance (feet) after the brakes are applied:
Speed (mph)
0
10
20
30
40
50
60
70
Distance (ft)
95
150
220
300
400
a. In the relationship between these two variables, which is the response variable (y) and which is the explanatory variable (x)?
b. Draw a scatterplot of the data. Characterize the relationship between stopping distance and speed.
you have received a year end bonus of 5000. you decide to invest the money in the stock market and have narrowed your
Simulate a completely random process of length 48 with independent, normal values. Plot the time series plot. Does it look "random"? Repeat this exercise several times with a new simulation each time.
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Assume that a study of 300 randomly selected school bus routes showed that 279 arrived on time. Is it unusual for a school bus to arrive late?
SCCoast, an Internet provider, developed the following frequency distribution on the age of Internet users. Find the mean, median, and the standard deviation.
Question 1: How many reservations can be accomodated in each rental class? Choose one answer.
the comfort widget company makes several different sized widgets. the smallest widget the company manufactures has a
A student is taking a multiple choice exam in which each question has four choices . Assume that the student has knowledge of a correct answer to any of the questions.
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What is a normal distribution? What is a Z-Value? Can you provide and example of how they relate?
We desire that the phase margin be equal to 30°. For a ramp input r(t) = t, we want the steady-state error to be equal to 0.05. Design a lag compensator to satisfy the requirements. Verify the results.
According to a survey reported in the Business Week, 30% of adults in the U.S. said that the cell phone is the invention that they hate most but cannot live without.
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