Answer: 3
Step-by-step explanation:
Given : Standard deviation : 
Margin of error : 
Significance level : 
By using the standard normal table of z ,
Critical value : 
The formula we use to find the minimum sample size required :-

i.e. 
Hence, the number of lights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident =3
Answer:
<u>The simplest system:</u>
<u>Solve by eliminating y:</u>
- x² = x
- x(x - 1) = 0
- x₁ = 0
- x₂ = 1
<u>Then the value of y:</u>
<em>The graphical solution is attached </em>
I believe the blank would equal the number 8
Answer:
y=1/3x-2
Step-by-step explanation:
Since the slope intercept form formula is y=mx+b all we need to do is input the values. So m is the slope. Input 1/3. X is next to it because we solve for this. B is the y intercept. Meaning its the point that crosses the line on the graph that is vertical. And you already have -2. Since we know: (x,y) so choose the y. And you have your equation.
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Answer:
5
Step-by-step explanation:
=
=
= 5