The figure below shows a shaded rectangular region inside a large rectangle (pic)
What is the probability that a point chosen inside the large rectangle is NOT in the shaded region ​

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?