Answer:
(25.53, 37.87): 95% CI
(23.59, 39.81): 99% CI
Step-by-step explanation:
The margin of error of a confidence interval is given by:
In which 
is the standard deviation of the population and n is the size of the sample.
z is related to the confidence level. The higher the confidence level, the higher the values of z, and thus, we wider the confidence interval is.
In this question:
The narrower C.I. is the 95%, and the wider is the 99%. So
(25.53, 37.87): 95% CI
(23.59, 39.81): 99% CI
Answer:
The arrangement of the given equation in the slope - intercept form are
Step-by-step explanation:
Given:
x + y = 4 and
y - 2x = -5
Slope - intercept form :
Where,
m is the slope of the line.
c is the y-intercept.
When two points are given say ( x1 , y1 ) and ( x2 , y2) we can remove slope by
Slope,
Intercepts: Where the line cut X axis called X- intercept and where cut Y axis is called Y- intercept.
So, the Slope -intercept form of
x + y = 4 is
and
y - 2x = -5 is
Answer:
3
Step-by-step explanation:
12 divided by 4 is 3. Therefor 1/4 of 12 is 3.
Hello!
Let's write this as an equation below.
3/4x=87
To find our answer ,we just divide both sides of the equation by 3/4.
x=116
Therefore, 116 people attended the concert.
I hope this helps!
Answer:
10 + 5x ≤ 25
Step-by-step explanation:
