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1. 140 students participated in a knowledge retrieval session. 25 scored 90 out of 100; 63
scored 80 out of 100; 31 scored 70 out of 100; 15 scored 60 out of 100: 6 scored 50 on the
knowledge retrieval session. Determine the average score on this knowledge retrieval
session. Show all work.

Respuesta :

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Answer:

76.14

Explanation:

The average will be the sum of all the marks that the students scored out of a hundred divided by the number of students.

25 scored 90

63 scored 80

31 scored 70

15 scored 60

6 scored 50

all the mentioned marks are out of hundred

Thus the average is given by

[tex]\dfrac{25\times 90+63\times 80+31\times 70+15\times 60+6\times 50}{140}=76.14[/tex]

The average score of the students is 76.14.

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