{"id":27163,"date":"2025-06-19T21:21:29","date_gmt":"2025-06-19T21:21:29","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=27163"},"modified":"2025-06-19T21:21:33","modified_gmt":"2025-06-19T21:21:33","slug":"output-the-average-of-a-series-of-grades","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/output-the-average-of-a-series-of-grades\/","title":{"rendered":"\u00a0Output the average of a series of grades"},"content":{"rendered":"\n
 Output the average of a series of grades<\/pre>\n\n\n\n
CAMIONS 2020, Prof. M. Metaxas Output the average of a series of grades. (10 pts) a) Request four grades. b) Output each grade and the average of all the grades average of all entered values excluding the -1. c) Output the Output Example (input bolded and italicized) Average calculator Enter grade #1: 90 Enter grade #2: 85 Enter grade #3: 80 Enter grade #4: 70 Your grades are: 90, 80, 70, 60 Your Average is 81.25.<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n
Here is a correct solution for the problem described, using Python:<\/p>\n\n\n\n
pythonCopyEdit# Average Calculator\n\ngrades = []  # List to store the grades\n\n# Request four grades from the user\nfor i in range(1, 5):\n    grade = float(input(f\"Enter grade #{i}: \"))\n    grades.append(grade)\n\n# Display the grades\nprint(\"Your grades are:\", \", \".join(str(int(grade)) for grade in grades))\n\n# Calculate the average\naverage = sum(grades) \/ len(grades)\n\n# Output the average\nprint(f\"Your Average is {average:.2f}.\")\n<\/code><\/pre>\n\n\n\n
Explanation <\/h3>\n\n\n\n
This program calculates the average of four grades input by the user. It starts by creating an empty list named grades<\/code>, which will store the numerical values entered by the user. The program then uses a for<\/code> loop to prompt the user four times, requesting grades numbered from 1 to 4.<\/p>\n\n\n\n
The input()<\/code> function collects each grade as a string, which is converted to a floating-point number using float()<\/code> before being appended to the grades<\/code> list. This allows for the inclusion of decimal values if necessary.<\/p>\n\n\n\n
Once all grades are collected, the program uses the join()<\/code> method along with str(int(grade))<\/code> to neatly display the grades in a comma-separated format. Casting to int<\/code> ensures the output format matches the example, where grades are shown as whole numbers even if entered as floats.<\/p>\n\n\n\n
To calculate the average, the sum()<\/code> function adds all the elements in the grades<\/code> list, and the total is divided by the length of the list using len(grades)<\/code>. This formula gives the correct arithmetic mean of the values.<\/p>\n\n\n\n
Finally, the average is displayed using formatted string output. The expression {average:.2f}<\/code> ensures that the result is shown with two decimal places, as seen in the sample output “81.25”.<\/p>\n\n\n\n
This approach ensures accuracy and clarity, offering a clean, understandable way to collect data, process it, and display meaningful results to the user. The program does not include any handling for -1<\/code>, as the example provided did not actually use it. If that were part of the logic, further conditional checks would be needed.<\/p>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
 Output the average of a series of grades CAMIONS 2020, Prof. M. Metaxas Output the average of a series of grades. (10 pts) a) Request four grades. b) Output each grade and the average of all the grades average of all entered values excluding the -1. c) Output the Output Example (input bolded and italicized) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-27163","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=27163"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27163\/revisions"}],"predecessor-version":[{"id":27175,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27163\/revisions\/27175"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=27163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=27163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=27163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}