I need help for
this question, only for the blanks in question marks. Somehow,
there appears to be missing information in the question. The answer
is 5/6 and 1/6. Thanks.
When Cedric leaves
for school in the morning, he may bring his raincoat along. The
tree diagram below shows the possible outcomes and some of their
probabilities.
Can't draw the
diagram, but I will describe it for you exactly the way it
is.
The probability of
the weather being dry is 3/4 and 1/4 for it being wet. There is a
2/5 chance of him bringing raincoat on dry weather and 3/5 chance
for him to not bring. Find the probability of him bringing raincoat
and not bringing it during wet weather.
*Note : there is a
5/6 chance of him bringing and 1/6 of him not bringing raincoat
during wet weather. How do I get these 2 values?
you have to draw it out using paintbrush and show us thru
photobucket
i believe something is lost ... ..
Probability of this kind is a mutually exclusive event..
Raining or not have no effect on the decision to bring
raincoat
the answer could be wrong ... as wat i have learnt in
probability tree