Most people can roll their tongues, but many people can't. Whether or not a person can roll his tongue is genetically determined,
Suppose we are interested in determining what fraction of students can roll their tongues. We get a simple random sample of
400 students and find that 317 can roll their tongues. The standard error for a 95% confidence interval for the true proportion of
tongue-rollers among students is closest to

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.