In 2005, 1,475,623 students heading to college took the SAT. The distribution of scores In the math section of the SAT follows a normal distribution with mean p 520 and standard deviation a = 115. a. Calculate the i-score for an SAT score of 720. Intexpret It using a complete sentence. b. What math SAT score Is 1.5 standard deviations above the mean? What can you say about this SAT score? c. For 2012, the SAT math test had a mean of 51$ and standard deviation 117. The ACT math test Is an alternate to the SAT and Is approximately noimally distributed with mean 21 and standard deviation 5.3. if one person took the SAT math test and scored 700 and a second person took the ACT math test and scored 30, who did better with respect to the est they took?
In 2005, 1,475,623 students heading to college took the SAT. The distribution of scores In the math section of the SAT follows a normal distribution with mean p 520 and standard deviation a = 115. a. Calculate the i-score for an SAT score of 720. Intexpret It using a complete sentence. b. What math SAT score Is 1.5 standard deviations above the mean? What can you say about this SAT score? c. For 2012, the SAT math test had a mean of 51$ and standard deviation 117. The ACT math test Is an alternate to the SAT and Is approximately noimally distributed with mean 21 and standard deviation 5.3. if one person took the SAT math test and scored 700 and a second person took the ACT math test and scored 30, who did better with respect to the est they took?
In 2005, 1,475,623 students heading to college took the SAT. The distribution of scores In the math section of the SAT follows a normal distribution with mean p 520 and standard deviation a = 115.
a. Calculate the i-score for an SAT score of 720. Intexpret It using a complete sentence.
b. What math SAT score Is 1.5 standard deviations above the mean? What can you say about this SAT score?
c. For 2012, the SAT math test had a mean of 51$ and standard deviation 117. The ACT math test Is an alternate to the SAT and Is approximately noimally distributed with mean 21 and standard deviation 5.3. if one person took the SAT math test and scored 700 and a second person took the ACT math test and scored 30, who did better with respect to the est they took?
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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