Answer:
131.7
Step-by-step explanation:
Answer:
The probability is 
Step-by-step explanation:
From the question we are told that
The population size is N = 31
The sample size n = 4
Generally the number of way by which the n can be selected from N is mathematically represented as
=>
=> 
=> 
=> 
The number of ways of selecting a particular sample size is is 
Therefore the probability of each simple random sample in this case is mathematically evaluated as

Let x be the unknown number. Then we have 18+x/4=x which is the same as (3/4)x=18 or x=24.
Answer:
-(3p^11)/4
Step-by-step explanation:
Answer:
(3,2)
Step-by-step explanation:
2x+3y=12
substitute x with 3 because x=3
2(3)+3y=12
multiply
6+3y=12
(subtract 6 from both sides)
3y=6
(divide by 3 on both sides)
1y=2
x = 3 and y = 2