Study the table carefully to answer the question that follows   Schools CLASSES VI VII VIII IX X   Pass Fail Pass Fail Pass Fail Pass Fail Pass Fail A 84 12 56 12 82 9 80 14 86 12 B 56 18 64 16 88 7 64 11 73 12 C 53 16 60 10 58 12 63 9 63 18 D 62 11 62 14 64 13 61 7 53 17 E 70 15 76 17 78 10 52 13 79 1 F 58 8 72 13 72 14 45 12 75 11 What is the average number of fail students from class IX from all the schools together?

Study the table carefully to answer the question that follows   Schools CLASSES VI VII VIII IX X   Pass Fail Pass Fail Pass Fail Pass Fail Pass Fail A 84 12 56 12 82 9 80 14 86 12 B 56 18 64 16 88 7 64 11 73 12 C 53 16 60 10 58 12 63 9 63 18 D 62 11 62 14 64 13 61 7 53 17 E 70 15 76 17 78 10 52 13 79 1 F 58 8 72 13 72 14 45 12 75 11 What is the average number of fail students from class IX from all the schools together? Correct Answer 11

Formula used:

Average = Sum of observation/Total number of observation

Calculation:

Total number of student failed

⇒ 14 + 11 + 9 + 7 + 13 + 12 = 66

Average is

⇒ 66/6 = 11

∴ The average of failed student in the class IX is 11.

Related Questions

Each question below is followed by two statements I and II. You have to determine whether the data given in the statements are sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. What is the average weight of new students added? I. In a class 60% students are male and there average weight is 15 kg more than the female students, 9 males and 6 new female students joined the class and the average weight of the class increased by 0.84 II. Total male students in the class is 12 more than female students adding 9 male students to the class increases the average weight of male students by 1 kg and adding 6 female students increases the average weight of female students by 0.6.