Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-random-variables-341-en_uva-random-variables-341-en
   name	uva-random-variables-341-en
   section	Probability/Elementary Probability/Random variables
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2.774
   p-value	0.4317

   Question

   It was determined of 200 people whether they were left- or right-handed, and how well they are artistically developed (good, moderate, poor). The results are shown in the cross tabulation below.

   ————– ————————- ——- ——– Artistic development Good Moderate Poor Right-handed 42 72 56 Left-handed 18 8 4 ————– ————————- ——- ——–

   What is P(Right-handed moderately developed)?

   
   
   1. FALSE: 0.36
   2. FALSE: 0.42
   3. FALSE: 0.89
   4. TRUE: 0.9
   
   
   1. 0.36: Incorrect
   2. 0.42: Incorrect
   3. 0.89: Incorrect
   4. 0.9: Correct