Examples : Mean of a Random Variable Video Lecture | Mathematics (Maths) Class 12 - JEE

hello friends this video Avanti part 37
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free from exam before watching the video
please make sure that you have watched
part 1 part of the sex 2 numbers are
selected at random without replacement
please note without replacement from 6
for 6 positive integers let X donates
the larger the to number fine e^x she
for him to select 2 numbers from 1 2 3 4
5 6 without replacement if I select one
if I select one the number can be 2 3 4
5 & 6
correct if I select to the other number
can be one I can't like to do you three
Blue Hole mu 5 to 6 I select 3 3 1 3 2 3
3 I can't select 3 4 3 5 please say I
select 4 4 1 4 4 3 4 4 i can select
gospel all is rated for five or six
similarly Phi Phi 1 Phi 2 Phi 3 5 5 5 I
go and select 5 6 6-1 6-2 6-3 6-4 6-4 66
I cancel so I have these many options
that is 1 2 3 4 5 6 into 5 30 options
now my X is the larger of in numbers the
larger of two numbers right larger of
two numbers can be 2 if you see it can
never be one can be 2 it can be 3 it can
be for can be 5 it can be 6 right so my
X can be 2 3 4 5 6
please note X can't be 1 here because X
is larger of two number you take any set
the minimum value for X can be 2 because
X is large over two number here also
larger of this is two larger of these is
three right so that way X can have these
values
correct so now I will see Rivera T of X
this is going to do 4 X is equal to 2
the larger number is 2 what all
scenarios I have this guy this guy in
either scenario the larger number is not
you take this guy Roger number is 3 3
right
so need two possible scenarios total
option is 30 this becomes 2 by 34 X is
equal to 3 the larger number is 3
I can select 3 one also one thing again
select 3 do also 2 3 I can't select 3 4
because in this flower vase 4 there are
4 possible scenarios with this rectangle
so the provided a is 4 by 30 total
option is 30 right similarly for the
large number is before you can select
for 1 you can select for body stick one
for business like for 2 for 3 right and
corresponding and select for entry for
also 6 possible options right so it will
be 6 5 similarly for X is equal to 5 you
see 4 5
I can select Phi 1 Phi 2 Phi 3 5 4 4
option like this and flip it and 5 2 5 3
5 these are all options if you see these
are options these all will give me 5 the
eight options so 8 by 30 similarly if
you are getting large number as 6x leg
any of these 6-1 6-2 6-3 6-4 six five
one six two six three six four six five
six like this they are 1 2 3 4 5 6 7 8 9
10 10 by so this is my provided
distribution right so my mu is nothing
but see my X IPX I where I is nothing
but
6 is equal to 2 into D Y 30 valid a of P
plus I is equal to 3
she took novelty or 3 is preventing of
Mexican to trees over 30 plus 4 4 into
probability of X equal to 4 is 6 by 35 5
into value of x equal to PI is AE by 36
6 into probability of X equal to 6 is so
if we add this you get 14 by G and that
is the mean of the larger number so you
do the experiment M number of times and
you find the large enough projects you
find the mean you get quoting by
threading as the mean thank you
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