Question

1)suppose three coins are tossed let Y be the
random variable representing the number
of tails that occur Find the values
the random variable y(show the
three diagram illustration of the problem)

example of three diagram Illustration
Example. Two balls
drawn in succession
without replacement from urn containing 5
red ball
and e blue ball let z be the
random variable representing the number
of blue balls. Find the value of the
random variable z

solution
tree diagram
Red(R) Red(R)
Blue(Blue)
Blue(B) Red(R)
Blue(B)
possible outcome
-Red Red(RR)
-Red Blue(RB)
-Blue Red(BR)
-Blue Blue(BB)
please help me my example nmn ​

Answer 1

Answer:

1)suppose three coins are tossed let Y be the

random variable representing the number

of tails that occur Find the values

the random variable y(show the

three diagram illustration of the problem)

Answer 2

Given :  three coins are tossed

y be the random variable representing the number of tails that occur

To Find :  the values of the random variable y

Solution:

3 coins are tossed

                           Possible out comes

                                       as coins are tossed simultaneously

HHH        HHT    HTH       HTT    THH        THT   TTH       TTT    

             

If One coin is tossed 3 time then tree diagram will look like this

             

                   H                                             T

         H                  T                       H                      T

H             T       H           T       H             T         H          T

random variable y  can have value 0 , 1 , 2 or  3

frequency of  occurring  out of 8

y (0) = 0 Tails   =   1  

y(1) = 1 Tail   =       3

y(2)  = 2 Tails  =   3

y(3) = 3 Tails   =    1

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