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Sports and Leisure
Sailboat enthusiasts believe that the wind speed (x, in miles per hour) is linearly related to (downwind) boat speed (y, in knots). For wind speeds between 10 and 30 mph and Hobie catamarans, the following data were recorded.
a. Construct a scatter plot for these data.
b. Find the estimated regression line. Add a graph of the estimated regression line to the scatter plot in part (a).
c. Estimate the mean speed of a Hobie catamaran for a wind speed of 18 mph.
reduce each of the following expressions into simplest form by application of the rules of summationsumi15 xi2c sumj13
Your friend also takes the test and obtains a score of 161.42 and is told that he is in the 22.8th percentile. What is overall mean and standard deviation of the test scores?
the average height of a woman aged 20-74 years is 64 inches in 2013. suppose the height of a woman is normally
Make two different Factor Fireworks for 64 and 84. Write an equation that shows 64 as a product of prime numbers. Then use the equation to help find 54/16.
This confidence interval can't be trusted to give information about the spending plans of all adults. Why not?
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suppose that customers arrive at a banks atm at the exponentially distributed mean rate of 30 per hour. if a customer
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What is the probability density function for this uniform distribution?
What is the probability that the speed on this lap is less than 155 mph?- What is the probability that the speed on this lap is between 140 and 150 mph?
a. What is the expected number of these tweets with no reaction (to the nearest whole number)? b. What are the variance (to 2 decimals) and standard deviation (to 4 decimals) for the number of these tweets with no reaction?
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