Exam 1

1. Metainformation

   Tag	Value
   file	Distributions_uva-normal-approximation-to-binomial-1127-en_uva-normal-approximation-to-binomial-1127-en
   name	uva-normal-approximation-to-binomial-1127-en
   section	Distributions/Discrete/Normal approximation to Binomial
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2.402
   p-value	0.4822

   Question

   Right after the vacations you hear that you have to take a true-false test with 30 questions must take. Suppose you have to pass 70% (or 21 questions) of all the questions and you haven’t been able to prepare at all. What is the probability that you will give the correct answer on 70% or more of all the questions if you guess all the answers? (Students should use the table of Standard Normal Probabilities.)

   
   
   1. TRUE: 0,03
   2. FALSE: 0,30
   3. FALSE: 0,70
   4. FALSE: 0,97
   
   
   1. 0.03: Correct
   2. 0.30: Incorrect
   3. 0.70: Incorrect
   4. 0.97: Incorrect