Answer: -3
Step-by-step explanation:
-4
+ 
can be written as
x 
which is the same as 2
Also ,
can be written as
x
, which is the same as 5
Substituting into the main question , we have
-4 (2
) + 5
= -8
+ 5
= -3
Answer: 0.2401
Step-by-step explanation:
The binomial distribution formula is given by :-

where P(x) is the probability of x successes out of n trials, p is the probability of success on a particular trial.
Given : The probability that a randomly chosen citizen-entity of Cygnus is of pension age† is approximately: p =0.7.
Number of trials : n= 4
Now, the required probability will be :

Thus, the probability that, in a randomly selected sample of four citizen-entities, all of them are of pension age =0.2401
Answer:
(X+7/4)=1/16
Step-by-step explanation:
.