Statistics Quiz

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11. In a module, quiz contributes 10%, assignment 30%, and final exam contributes 60% towards the final result. A student obtained 80% marks in quiz, 65% in assignment, and 75% in the final exam. What are average marks?
(A) 64.5%
(B) 68.5%
(C) 72.5%
(D) 76.5%

12. In a university, average height of students is 165 cm. Now, consider the following Table,

Students1620242016
HEIGHT160–162162–164164–166166–168168–170
What type of distribution is this?
(A) Normal
(B) Uniform
(C) Poisson
(D) Binomial

13. What is the average of 3%, 7%, 10%, and 16% ?
(A) 8%
(B) 9%
(C) 10%
(D) 11%

ANSWERS: STATISTICS QUIZ
11. (C) 72.5%
12. (A) Normal
13. (B) 9%

SOLUTIONS: STATISTICS QUIZ

11. By using formula for calculating weighted average, we have

12.

13.