Arithmetic mean
A student scores 20 in test 1 , 40 in test 2 , 20 in test 3 , and 45 in test 4. Grades for tests are 2,1,2,1 respectively. Find average score.
Answers
Answered by
30
Answer:
27.83333
Step-by-step explanation:
average = sum of all the observations / total number of observations;
=> average = (20+40+20+45+21+21)/ 6
=> average = 167/6
=> average = 27.8333333
Answered by
14
Step-by-step explanation:
Answer: 27.5
Step-by-step explanation:
Average score = ((20 x 2) + (40 x 1) + (20 x 2) + (45 x 1))/6
= (40+40+40+45)/6 = 165/6 = 27.5
Attachments:
Similar questions