this yearly wheat yield per acre on a particular farm follows this distribution, normal with a mean of 50 and a standard deviation of 8.what is the probability that the yield will be between 36 and 48 bushels

In what organelle does photosynthesis take place?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?