Answer:
1) What is the average score of the student surveyed?
b. 52.5
2) What is the median of the student's surveyed?
52.5
3) How many students were surveyed?
20 students
Step-by-step explanation:
1) What is the average score of the student surveyed?
Average score of the student's been surveyed means we should calculate the mean of the above scores
The formula for Mean = Sum of the number of terms/ Number of terms
Number of terms = 20
Average(Mean score) =
25 + 30 + 35 + 40 + 40 + 45 + 45 + 50 + 50 + 50 + 55 + 55 + 55 + 60 + 60 + 65 + 65 + 70 + 75 + 80/20
= 1050/20
= 52.5
2) What is the median of the student's surveyed?
25, 30, 35, 40, 40, 45, 45, 50, 50, 50, 55, 55, 55, 60, 60, 65, 65, 70, 75, 80
From the above data, we can see that 20 students were surveyed. To find the Median, we find the sum of the 10th value and the 11th value and we divide by 2
Hence,
25, 30, 35, 40, 40, 45, 45, 50, 50,) 50, 55, (55, 55, 60, 60, 65, 65, 70, 75, 80
10th value = 50
11th value = 55
Median = 50 + 55/2
= 105/2
= 52.5
3) How many students were surveyed?
Counting the results of the survey, the number of students that were surveyed = 20 students
