The score of a student getting 70 correct and 30 incorrect in True/False item by applying guessing correction formula will be?
درست/غلط آئٹم میں 70 درست اور 30 غلط حاصل کرنے والے طالب علم کا اندازہ درست کرنے کے فارمولے کو لاگو کر کے اسکور کیا ہوگا؟
Answer: 40
Explanation
To apply the guessing correction formula for True/False items, we need to know the number of options (N). In True/False items, there are typically 2 options (True or False).
Given:
Number of correct answers (R) = 70
Number of incorrect answers (W) = 30
Number of options (N) = 2
Using the guessing correction formula:
S=R−(W/N−1)
Substituting the values:
S=70−(30/2−1)
S= 70 − 30= 40
So, the score of a student getting 70 correct and 30 incorrect in a True/False item, by applying the guessing correction formula, will be 40. Therefore, the correct option is 40.