Answer:
-3
Step-by-step explanation:
The equation could be written with decimals to make it easier:
0.5 + (-3.5) = ?
I am going to make an example
You owe your friend $3.50
That can be represented as this:
$-3.50
You pay your friend $0.50
Now you only owe your friend $3.00
Hope this helped :)
Given Information:
Population proportion = p = 0.55
Sample size 1 = n₁ = 30
Sample size 2 = n₂ = 100
Sample size 3 = n₃ = 1000
Required Information:
Standard error = σ = ?
Answer:



Step-by-step explanation:
The standard error for sample proportions from a population is given by
Where p is the population proportion and n is the sample size.
For sample size n₁ = 30



For sample size n₂ = 100



For sample size n₃ = 1000



As you can notice, the standard error decreases as the sample size increases.
Therefore, the greater the sample size lesser will be the standard error.
Answer:
x = 8
Step-by-step explanation:
4(x+1.5)=38
Distribute the 4
4x +6 = 38
Subtract 6 from each side
4x+6-6 = 38-6
4x = 32
Divide each side by 4
4x/4 = 32/4
x = 8