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Statisticians use the concepts of mean and standard deviation to describe a collection of numbers. The mean is the average value of the numbers and the standard deviation measures the spread or dispersal of the numbers about the mean. The formally, if x1, X2, X3, .., Xn is a collective of numbers then the mean is: X1 + x2 + x3+...+xn m = and the standard deviation is: (x1 – m)? + (x2 – m)² + (x3 – m)²+...+(x, – m)² s = Have the user enter number of exam scores you would like to find the average and standard deviation. Write a program to calculate the mean standard deviation of the exam scores, assign letter grades to each exam score, ES, as follows, and then display information about the exam scores and grades: ES > m + 1.5s → A $$m+0.5s\le ES $$m-0.5s\le ES $$m-1.5s\le ES $$ES Show your answers with at least 10 grades entered to validate your code works. Below is an example of how your outputs can be displayed but not required. Number of scores: 14 Average score: 71.0 Standard deviation of scores: 14.42 GRADE DISSTRIBUTION AFTER CURVING GRADES. A: 2 В: 1 C: 6 D: 4 F: 1

Statisticians use the concepts of mean and standard deviation to describe a collection of numbers. The mean is the average value of the numbers and the standard deviation measures the spread or dispersal of the numbers about the mean. The formally, if x1, X2, X3, .., Xn is a collective of numbers then the mean is: X1 + x2 + x3+...+xn m = and the standard deviation is: (x1 – m)? + (x2 – m)² + (x3 – m)²+...+(x, – m)² s = Have the user enter number of exam scores you would like to find the average and standard deviation. Write a program to calculate the mean standard deviation of the exam scores, assign letter grades to each exam score, ES, as follows, and then display information about the exam scores and grades: ES > m + 1.5s → A $$m+0.5s\le ES $$m-0.5s\le ES $$m-1.5s\le ES $$ES Show your answers with at least 10 grades entered to validate your code works. Below is an example of how your outputs can be displayed but not required. Number of scores: 14 Average score: 71.0 Standard deviation of scores: 14.42 GRADE DISSTRIBUTION AFTER CURVING GRADES. A: 2 В: 1 C: 6 D: 4 F: 1

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Statisticians use the concepts of mean and standard deviation to describe a collection of numbers. The mean is the average value of the numbers and the standard deviation measures the spread or dispersal of the numbers about the mean. The formally, if x1, x2, X3, ..., Xn is a collective of numbers then the mean is: X1 + x2 + x3+...+xn m = n and the standard deviation is: (x1 m)² + (x2 – m)² + (x3 = m)²+.… +(Xn – m)² S = n Have the user enter number of exam scores you would like to find the average and standard deviation. Write a program to calculate the mean standard deviation of the exam scores, assign letter grades to each exam score, ES, as follows, and then display information about the exam scores and grades: ES > m + 1.5s A $$m+0.5s\le ES $$m-0.5s\le ES $$m-1.5s\le ES $$ES Show your answers with at least 10 grades entered to validate your code works. Below is an example of how your outputs can be displayed but not required. Number of scores: 14 Average score: 71.0 Standard deviation of scores: 14.42 GRADE DISTRIBUTION AFTER CURVING GRADES. А: 2 в: 1 C: 6 D: 4 F: 1
Transcribed Image Text:Statisticians use the concepts of mean and standard deviation to describe a collection of numbers. The mean is the average value of the numbers and the standard deviation measures the spread or dispersal of the numbers about the mean. The formally, if x1, x2, X3, ..., Xn is a collective of numbers then the mean is: X1 + x2 + x3+...+xn m = n and the standard deviation is: (x1 m)² + (x2 – m)² + (x3 = m)²+.… +(Xn – m)² S = n Have the user enter number of exam scores you would like to find the average and standard deviation. Write a program to calculate the mean standard deviation of the exam scores, assign letter grades to each exam score, ES, as follows, and then display information about the exam scores and grades: ES > m + 1.5s A $$m+0.5s\le ES $$m-0.5s\le ES $$m-1.5s\le ES $$ES Show your answers with at least 10 grades entered to validate your code works. Below is an example of how your outputs can be displayed but not required. Number of scores: 14 Average score: 71.0 Standard deviation of scores: 14.42 GRADE DISTRIBUTION AFTER CURVING GRADES. А: 2 в: 1 C: 6 D: 4 F: 1
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