The actual width of the room was 42.6 feet. suppose we calculated the error in each student's guess as follows: guess − 42.6. find the mean and standard deviation of the errors. how good were the students' guesses? justify your answer.

What expression is equivalent to log3(x+4)

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

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?