30% of the library books in the fiction section are worn and needs replacement.10% of the nonfiction holding are worn. the library’s holdings are 60% fiction and 40% nonfiction. find the probability that a book chosen at random from this library’s is worn and needs replacement

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

Anyone know these questions? i need ,.

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !