A placement exam for entrance into a math class yields a mean of 80 and a standard deviation of 10. The distribution of the scores is roughly bell-shaped. Use the empirical rule to find the percentage of scores that lie between 60 and 80.

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To make your papers high quality, you - make sure you establish a clear purpose- use a variety of sentence structures and advanced vocabulary - organize the essay effectively to provide a coherent flow of thought/argument- stay on topic! make sure each sentence supports your thesis/argument/purpose - avoid incorrect grammar and mechanics that could detract from your credibility.- use liking words and sentences so your essay flows. as for the new strategies you have learned from the lesson, i think you can draw from he bullet points listed above. hope this !

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For the sat there is a reading test, math test, and a writing and language test. the act has social studies and science tests.