2. 外语
  3. Fifty applicants for a job were given scores from 1 to 5 on their interview performance. Their scores are shown in the table abo

Fifty applicants for a job were given scores from 1 to 5 on their interview performance. Their scores are shown in the table abo

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问题 Fifty applicants for a job were given scores from 1 to 5 on their interview performance. Their scores are shown in the table above. What was the average score for the group?
选项 A、2.79
B、2.86
C、2.91
D、2.99
E、3.03
答案B
解析 You can calculate this average score exactly the same way you would calculate a GPA--multiply each of the scores by the number of applicants with that score, add them all up, and divide the sum by 50. 10+48+63+14+8=143;143/50=2.86.
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