A marketing manager conducts a simple regression analysis with units sold as a function of retail price. If the estimated slope coefficient equals -0.064 and the model explains 0.5625 of the total variation in units sold, what is the value of the sample correlation coefficient between units sold and selling price

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73