Answer:
2) 0.0914
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of .
The margin of error is of:
A survey of 114 drivers is performed and 62 people say they will not drive until all passengers in the vehicle are buckled up.
This means that
95% confidence level
So , z is the value of Z that has a p-value of , so .
What would be the margin error for this confidence interval?
Thus the margin of error is 0.0914, option 2).
Answer:
[−5,5]
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
To find the possible value of x in the given trapezoid MNOP with median QR, recall that one of the properties of a trapezoid is that the median length = ½ of the sum of the length of the parallel bases
Thus, ½ of [x + (3x + 8)] = 20
Let's find x
½*[x + (3x + 8)] = 20
½*[x + 3x + 8)] = 20
½*[4x +8] = 20
Multiply both sides by 2
4x + 8 = 20*2
4x + 8 = 40
Subtract 8 from both sides
4x = 40 - 8
4x = 32
Divide both sides by 4
x = 32/4
x = 8
Answer:
116.2
Step-by-step explanation:
The circumference formula is C= 2 (pi)r
Plugin our number
C=2(pi )18.5
Then mulitply and we get the product
116.24
round to the nearest tenth
116.24
Answer:
the slope of gx is undefined
Step-by-step explanation: