Suppose that many large samples are taken from a population and that the sample proportions are normally distributed, with a mean of 0.22 and a standard error of 0.029. What is the 99.7% confidence interval?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.