Answer:
<h3>"When constructing a confidence interval for a population mean, if a population is normally distributed and a small sample is taken, then the distribution of is based on the <u> "t" </u>distribution</h3>
Step-by-step explanation:
Given that "When constructing a confidence interval for a population mean, if a population is normally distributed and a small sample is taken, then the distribution of is based on the "<u>t"</u>distribution."
Because the given sample size is smaller so we have to use the "t" distribution for constructing the confidence interval for a given population
Answer:
m= -5/3
Step-by-step explanation:
y-y/x-x give you your slope
-4-1 = -5
3-0 = 3
-5/3 is -5/3
Answer & Step-by-step explanation:
The domain is the input, and the range is the output.
The domain is also known as the x values and the output as the y values (x,y).
So:
<em>domain: {4, -1, 0, 2}</em>
<em>range: {-4, 3, 5, 8}</em>
:Done
Answer:
v=26.41 m/s
Step-by-step explanation:
From the Newtons laws of motions, we sew that x= (2v₁²sin∅os∅)/g where x is the horizontal distance v is the initial speed and ∅ is the launch angle.
From trigonometry we see that 2 sin∅cos∅=sin 2∅
Therefore, x=(v²sin2∅)/g
x=22m
∅=9°
g=9.8m/s²
22m=v²×sin(2×9)/(9.8m/s²)
v²=(22×9.8)/(sin 18)
v²=697.696
v=√697.696
v=26.41 m/s
Yes
Y varies directly with x, it is a direct relationship between the two.
