Which of the following is a random sample of new car owners? a. pollsters randomly selecting new owner names from customer purchase lists to survey. b. a car dealership representative talks to purchasers of new cars. c. owners of new cars are surveyed as they leave a fast-food restaurant. d. owners of hybrid cars are surveyed at gas stations.

Dilations map circles to circles and ellipses to ellipses with the same. true or false

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?