Answer:
there is no question there for i can not answer your question
Answer:
5.625
Step-by-step explanation:
first you find a common denominator ( I chose 90 because 18 * 5 = 90)
then you have to do the same thing what you did to the numerator so you would do 7*5=35 and 3*18=54
so it would be
35/90 + 54/90 = 89/90
and then you can't simplify it so the
answer is 89/90
Let us say T= probability of head turning up = 1/2 in one toss
H = probability of a tail turning up = 1/2 in one toss
Then P (56 heads or more) =
1/2^100 [ C(100,56) + C(100,57) + C(100,58) + ....
C(100,98) + C(100,99) + C(100,100) ]
where C(N, R) = N ! / [ (N - R)! R! ] number of occurrances of R formed from
N tosses.
(a-b)¹²=a¹²-12a¹¹b+...
Let a=2r and b=3s then the second term is -12(2r)¹¹(3s)=-73728r¹¹s.