A large group of students took a test in Statistics and Probability and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal distribution, what percent of the students; a. scored higher than 80? b. should pass the test (grades≥60)? c. should fail the test (grades<60)?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.