the correct answer is :C
i am currently doing this question on edgen uity
Answer:
The 99% confidence interval for the true population proportion of adults with children is (0.6367, 0.7433).
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 .
In a sample of 500 adults, 345 had children.
This means that
99% confidence level
So , z is the value of Z that has a p-value of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 99% confidence interval for the true population proportion of adults with children is (0.6367, 0.7433).
Answer:
cos
Step-by-step explanation:
its adjacent over hypotenuse
For determining proportional ratios, you have to multiply both the denominator and the numerator by the same number
Eg. 14/4 is proportional to 7/2 while 22/6 is not proportional to 7/2.
The edge length of a cube was to double, then the scale factor would be 1:2 (1 representing the original cube, and 2 representing the doubled cube). The ratio between the volumes is the scale factor cubed. Therefore the ratio of the volumes would be 1 cubed:2 cubed which simplifies to 1:8.
Final Answer: the volume of the cube with doubled edge lengths would be 8 times as large as the volume of the original cube.