The Standards-Based Assessment Exam (SBAE) is an examination given to randomly selected students around the world that aims to identify the quality of education between schools, localities, and countries. Suppose that the results of the SBAE is normally distributed with a mean score of 110 and a standard deviation of 11.2. Approximately what score should a student get if s/he wishes to have a score higher than 90% of all the examinees? 92 96 124 128
The Standards-Based Assessment Exam (SBAE) is an examination given to randomly selected students around the world that aims to identify the quality of education between schools, localities, and countries. Suppose that the results of the SBAE is normally distributed with a mean score of 110 and a standard deviation of 11.2. Approximately what score should a student get if s/he wishes to have a score higher than 90% of all the examinees? 92 96 124 128
The Standards-Based Assessment Exam (SBAE) is an examination given to randomly selected students around the world that aims to identify the quality of education between schools, localities, and countries. Suppose that the results of the SBAE is normally distributed with a mean score of 110 and a standard deviation of 11.2. Approximately what score should a student get if s/he wishes to have a score higher than 90% of all the examinees? 92 96 124 128
The Standards-Based Assessment Exam (SBAE) is an examination given to randomly selected students around the world that aims to identify the quality of education between schools, localities, and countries. Suppose that the results of the SBAE is normally distributed with a mean score of 110 and a standard deviation of 11.2. Approximately what score should a student get if s/he wishes to have a score higher than 90% of all the examinees?
92
96
124
128
Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.
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