For 50 randomly selected speed dates, attractiveness ratings by males of their female date partners (x) are recorded along with the attractiveness ratings by females of their male date partners (y); the ratings range from 1 to 10. The 50 paired ratings yield x overbarequals6.4, y overbarequals6.0, requalsnegative 0.236, P-valueequals0.100, and ModifyingAbove y with caretequals7.65negative 0.263x. Find the best predicted value of ModifyingAbove y with caret (attractiveness rating by female of male) for a date in which the attractiveness rating by the male of the female is xequals5. Use a 0.01 significance level.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Which expression gives you the distance between the points (5,1)and(9,-6)

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?