A is a binomial since it has only 2 values
Answer:
n=9
Explanation:
First, let's give a name to the number we are looking for and call it n.
So we can then write "A number is divided by 3" as n3
To add 5 to the quotient would then give us the expression n3+5
If this results in 8 we can finally write the equation we are trying to solve and solve the equation for n while keeping the equation balanced:
n3+5=8
n3+5−5=8−5
n3+0=3
n3=3
3⋅n3=3⋅3
1n=9
n=9
90/18 = 5 so the ratio is 1:5
Answer:
probability comes out to be 
Step-by-step explanation:
when the dice is singly rolled
chances of getting 4 (Y)is 
and,
chance of not getting 4 (N) is 
probability of getting 4 on first, second and third time and not on the forth time is
P( Y, Y, Y, N ) = 
= 
so the probability comes out to be 