Challenge: Working with Collections
You have a list
of student grades. Your task is to calculate the average grade and determine the number of students with grades above 80.
Instructions
-
Use a
for
loop to iterate through the list and find:- The average grade.
- The number of students with grades above 80.
-
Print the average grade and the number of students with grades above 80.
Main.kt
123456789101112131415161718fun main() { val grades = listOf(75, 88, 92, 66, 80, 95, 72, 85) var sum = 0 var countAbove80 = 0 for (___ in ___) { sum = ___; if (grade ___) { // increment the count value } } val average = //divide sum by count of grades println("Average grade: $average") println("Number of students with grades above 80: $countAbove80") }
- Use variables to store the sum of the
grades
and the number of students with grades above 80. - To calculate the average grade, use the formula:
sum / count
.
12345678910111213141516171819fun main() { // Create a list of student grades val grades = listOf(75, 88, 92, 66, 80, 95, 72, 85) // Find the average grade and the number of students with grades above 80 var sum = 0 var countAbove80 = 0 for (grade in grades) { sum += grade if (grade > 80) { countAbove80++ } } val average = sum / grades.size println("Average grade: $average") println("Number of students with grades above 80: $countAbove80") }
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Challenge: Working with Collections
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You have a list
of student grades. Your task is to calculate the average grade and determine the number of students with grades above 80.
Instructions
-
Use a
for
loop to iterate through the list and find:- The average grade.
- The number of students with grades above 80.
-
Print the average grade and the number of students with grades above 80.
Main.kt
123456789101112131415161718fun main() { val grades = listOf(75, 88, 92, 66, 80, 95, 72, 85) var sum = 0 var countAbove80 = 0 for (___ in ___) { sum = ___; if (grade ___) { // increment the count value } } val average = //divide sum by count of grades println("Average grade: $average") println("Number of students with grades above 80: $countAbove80") }
- Use variables to store the sum of the
grades
and the number of students with grades above 80. - To calculate the average grade, use the formula:
sum / count
.
12345678910111213141516171819fun main() { // Create a list of student grades val grades = listOf(75, 88, 92, 66, 80, 95, 72, 85) // Find the average grade and the number of students with grades above 80 var sum = 0 var countAbove80 = 0 for (grade in grades) { sum += grade if (grade > 80) { countAbove80++ } } val average = sum / grades.size println("Average grade: $average") println("Number of students with grades above 80: $countAbove80") }
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