Impossible Sure Event (Part - 4) - Probability, Math Video Lecture - Class 10

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discuss impossible and sure given
probability of an event is impossible
which occurs if probability of any event
is 0 that means it is impossible so
example I threw a 9 and this guy has
number from 1 to 6 and I tell that what
is the probability that I get 7 in the
dial the opposite is zero you'll never
get 7 in life you throw over this die
1,000 times you will never get 7 because
7 is not embossed in this time such kind
of event has got impossible event where
the floor where it is 0-2 lebaron
similarly we have even called
sure-shot even for that the favela makes
one example the same time we throw to
the eye and we say that I want a number
from 1 to 6 any number of mundo 6 find
the probability that you get numbered
from 1 to 6 money throw a die that case
the power it is 100% why because you
need throw a number you get either 1 2 3
or 5 or 6 and that number is in this
range correct you take one example a job
attends layman only this has only lemon
this lady
maleeni she takes on one food from this
jar without looking at this because this
is a hidden Ashley this is a black color
what does the provider agency takes out
Apple it is always obviously 0 the
variety of Apple has to be 0 why because
there is no Apple in this she takes out
anything has to be lemon so the belt is
0 so this is example of impossible the
second is what does the probability that
C takes out lemon it will be 100% sure
that she will take out lemon why was any
fruit she take out that does them so it
is 100% sure that
take off so it is sure shot him correct
it is Yosh not even dance even thing out
then let's take one more example it is
given that in a group of three students
the probability of two students not
having same birthday is 0.99 - what is
the probability that the two student
have seen very simple
and show you what the probability of two
student same birthday
not having seen but this 0.99 that is
given but I have to find I have to find
probability of two student same bundle
so to do this what you can do is you can
just the formula for variety of event
eat - this is nothing but one rice
priority of even D so here so what I get
the value of E is nothing but 1 minus
parity of event not that even so this is
nothing but 1 minus what is this value
point 9 9 2 this becomes point 0 0 so
probability of E comes out to be point 0
0 and this is nothing but micro Verity
of a that is priority of two students
having same but it is point 0 0 8 and
that is man's very simple application of
the form a jar contains three red balls
and five blue balls a ball is drawn at
random from the bag what is the
probability that the ball is red or not
we have this jar we have 5 3 red and 5
blue ball from this it is hidden
actually without C of closing our eyes
we take out one ball get to find the
favela tear it is red or not so we'll
find first ability of red
this is nothing but favorable outcome by
total outcome so if you take out ball in
how many case it can be read they are
three balls the chance is three times
the chances are it will be read and the
total number of ball is Phi plus three
you take out ball there five chances
that it will be blue and three chances
that will be red so total outcome is
three plus five so probability of red is
three by eight correct because you have
three balls red balls and five blue
balls I have to find provider to your
red ball favorable outcome for red ball
is 3 and total outcome is three plus
five that this e so priority of red is
three by a preventive of not red is how
much one - we've already opted simple
formula the second thing is provided a
of not red just apply the from 1-3 by a
and that comes out we five by eight
logically also if you see provided T of
not it is nothing but probability of
blue because they already two balls in
ray W and provide your blowers if you
take out that will come out to be five
white because they are five blue balls
and eight total number of pulse so
forever on top of blue is five and
favorable outcome for it is three and
total favored load curve is eight thank
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