Tomato farmers use an automated tomato picker to pick the tomatoes and eliminate non-ripe tomatoes. The machine works very quickly but the elimination of non-ripe tomatoes is not perfect.

a) The farmer sells a 41.9915-tonne load to a buyer who takes a single scoop of tomatoes from a random spot in the load. If the sample has approximately 300 tomatoes and 92% are acceptable, how much is the load worth? Tomatoes sell for $94.40 per tonne.

answer: => Load worth=41.9915 x 0.92=38.6322-tonne

b) At least 67% the tomatoes in a load must be acceptable for the buyer to purchase the load. If the farmer expects to get 150 loads from his fields each year, by how much could the farmer's income vary? How do you think the variability in the yields affects how the farm's finances are managed?

^ i need help figuring this one out, i don't understand what to do