Gradebook Page

Step one

• A teacher has finished grading their students' tests and needs your help to calculate the average score for the class.

• Complete the getAverage function which takes in an array of test scores and returns the average score.

• The average is calculated by adding up all the scores and dividing by the total number of scores.

• Example Code

  • average = sum of all scores / total number of scores

Step two

• Now the teacher needs your help converting the student score to a letter grade.

• Complete the getGrade function that takes a number score as a parameter. Your function should return a string representing a letter grade based on the score.

• Here are the scores and their corresponding letter grades:

    - Score Range	Grade
    - 100	"A++"
    - 90 - 99	"A"
    - 80 - 89	"B"
    - 70 - 79	"C"
    - 60 - 69	"D"
    - 0 - 59	"F"
  

Step three

• The teacher is really happy with the program you have created so far. But now they want to have an easy way to check if a student has a passing grade. A passing grade is anything that is not an "F".

• Complete the function hasPassingGrade that takes a student score as a parameter. Your function should return true if the student has a passing grade and false if they do not.

Step four

• Now that the teacher has all of the information they need, they want to be able to message the student with the results.

• Complete the studentMsg function with totalScores and studentScore for parameters. The function should return a string representing a message to the student.

• If the student passed the course, the string should follow this format:

• Example Code

  • Class average: average-goes-here. Your grade: grade-goes-here. You passed the course.
  • If the student failed the course, the string should follow this format:

• Example Code

  • Class average: average-goes-here. Your grade: grade-goes-here. You failed the course.

  • Replace average-goes-here with the average of the total scores. Replace grade-goes-here with the student's grade.