The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is ten pairs of data were used to obtain the equation. the same data yield r = 0.863 and what is the best predicted job performance rating for a person whose attitude rating is 77? 80.1 12.6 88.9 90.2

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Find the solution on the interval [0, 2pi)