Suppose two 6-sided dice are rolled. What are the probabilities of the following events? At least one die lands on an odd number (call this event A). At least one die lands on a number less than or equal to 3 (call this event B). A or A and

Solution

S u pp ose tw o 6 - s i d e d d i ce a re ro ll e d . Wha t a re t h e p ro babi l i t i es o f t h e f o ll o w in g e v e n t s ? A t l e a s t o n e d i e l an d s o n an o dd n u mb er (c a ll t hi s e v e n t A) . A t l e a s t o n e d i e l an d s o n a n u mb er l ess t han or e q u a l t o 3 (c a ll t hi s e v e n t B) . A or A an d

The number : - 3

étapes des solutions

Represent the number with

x

A.T.Q.:

- 1 \cdot x = 3

Solutionner pour

x, - 1 \cdot x = 3 : x = - 3

The number : - 3