gron County.. 87D7FOE72E3A31. A TradingView FINVIZ.com sC VSC Example 1 Recall our earlier scenario: The Federal Pell Grant Program provides need-based grants to low-income undergraduate and certain post-baccalaureate students to promote access to post-secondary education. According to the National Post-secondary Student Aid Study conducted by the U. S. Department of Education in 2008, the average Pell grant award for 2007-2008 was $2, 600. Assume that the standard deviation in Pell grants awards was $500. If we randomly sample 36 Pell grant recipients, would you be surprised if the mean grant amount for the sample was $2, 940? 1. Can we use use the normal approximation? Yes, n 2 30. + (Click to view hint) 2. What theorem states that we can use the normal approximation? The Central Limit Theorem 3. If the population mean is 2600, how can we determine if 2940 is unusual? a. If 2940 is unusual it will be beyond 3 : standard deviations of the mean. (Click to view hint) (Round to the nearest tenth.) (Click to view hint) b. The z-score for 2940 is (Click to view hint) c. $2940 is + an unusual award. Check

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Ratios

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

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.