Tag | Value |
---|---|
file | Probability_uva-multiplication-rule-935-en_uva-multiplication-rule-935-en |
name | uva-multiplication-rule-935-en |
section | Probability/Elementary Probability/General Rules/Multiplication rule |
type | schoice |
solution | TRUE, FALSE, FALSE, FALSE |
Type | Conceptual |
Language | English |
Level | Statistical Literacy |
IRT-Difficulty | -0.697 |
p-value | 0.9428 |
Suppose a class contains 40 students. 15% of them are left-handed. 50% of them prefer to write with a pencil. Do we define the event A: the left-handed students of this class and the event B: the students who use a pencil. We assume that A and B are independent of each other. What is the probability if the teacher chooses one student at random, that he or she is a left-hander and also wants to use a pencil use?