Jade and Henry work for a company that sells buckets of popcorn. The company wants to have a special offer. Here is Jade's idea for the special offer.
Put 20% more popcorn into each bucket and do not change the price.

Here is Henry's idea for the special offer.
Reduce the price and do not change the amount of popcorn in each bucket.

Henry wants his idea to give the same value for money as Jade's idea.

By what percentage, to the nearest whole number, does Henry need to reduce the price?

Aconcession manager at yankee stadium wants to know how temperature affects beer sales. she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. temperature 80 68 78 79 87 74 86 92 77 84 number of beers 20533 1439 13829 21286 30985 17187 30240 87596 9610 28742 a. draw a scatter plot of the data. b. the manager estimates the regression equation to be: numberofbeers = −100, 678 + 1, 513 ∗ temperature draw this on your scatter plot. c. for one of the estimated points, indicate the residual with ei . d. for that same point, indicate what part of the variation is explained by the model with ˆyi − y¯.