30509010011D 120QUESTION 5If the same number of students in the upper 25% and the lower 25% choose the correct answer to a multiple-choice question, what is the index ofdifficulty for the question?O a. 0O b.0.5Oc.1d. cannot determine from the information given

Since it has same number of student in the upper 25% and lower 25% hence the correct answer is .

Answered: 30 50 90 100 110 120 QUESTION 5 If the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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30 50 90 100 110 120 QUESTION 5 If the same number of students in the upper 25% and the lower 25% choose the correct answer to a multiple-choice question, what is the index of difficulty for the question? O a. 0 O b.0.5 O. 1 d. cannot determine from the information given