Private nonprofit four-year colleges charge, on average, $26,521 per year in tuition and fees. The standard deviation is $6,520. Assume the distribution is normal. Let X be the cost for a randomly selected college. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N( b. Find the probability that a randomly selected Private nonprofit four-year college will cost less than 26,844 per year. c. Find the 79th percentile for this distribution. $ (Round to the nearest dollar.)

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.