Arun applied for a job as an English teacher in a school. In the test for the job, he scored 9 in speaking, 8 in listening, 6 in writing, and 7 in interview. For calculating the final score, weights of 4, 3, 3, and 4 marks were assigned to speaking, listening, writing, and interviewing respectively. What is the weighted average score of Arun? (Round off to two decimal places)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 7.57.
Given that,
Arun scored 9 in speaking, 8 in listening, 6 in writing, and 7 in interview.
The final score, with weights of 4, 3, 3, and 4, was assigned to speaking, listening, writing, and interviewing, respectively.
According to the question
⇒ 4 × 9 + 3 × 8 + 6 × 3 + 4 × 7
⇒ 36 + 24 + 18 + 28 = 106
Total weights = 4 + 3 + 3 + 4 = 14
Hence,
The weighted average score = 106/14 = 7.57