You are choosing between the following investment strategies: i. invest $200 in stock a. stock a costs $20 per share. expected yield per share of stock a is $2, and the variance of yield per share is 9 ($-squared). ii. invest $200 in stock b. stock b costs $10 per share. expected yield per share of stock b is $.90, and the variance of yield per share is 1 ($-squared). iii. invest $100 in stock a and $100 in stock b. the correlation between yield per share of stock a and yield per share of stock b is .12. a. which investment strategy has the highest expected yield? b. assuming that yields for each stock are approximately normally distributed, with which investment strategy do you have the smallest chance of losing money?

$527.7.if the following was the question  $527.7 is the answer.students who are trying to raise funds have an agreement with a local pizza chain. the chain has agreed to sell them pizzas at a discount, which the students can then resell to families in the local community for a profit. it is expected that of the 500 families in the community, at most 70% will buy pizza. based on a survey of their personal preferences, the students believe that they should order no more than 120 cheese pizzas, no more than 150 pepperoni pizzas, and no more than 100 vegetarian pizzas. they also want to make sure that at least 20% of the total pizzas are cheese and at least 50% of the pizzas are pepperoni. they make a profit of $1.45, $1.75, and $1.98, respectively, for each cheese, pepperoni, and vegetarian pizza they resell. how many pizzas of each type should they buy?

30,000 would be the answer