A researcher hypothesizes that the attraction one feels for a potential partner increases the anxiety one feels during the first date. Higher numbers indicate higher attraction and anxiety (on a scale of 1-7 for both). She obtains a sample of 80 participants and from that computes the covariance, and standard deviations for anxiety and attraction, reported below. For this question, what is the correlation between attraction and anxiety?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.

Which of the following scenarios demonstrates an exponential decay